CBSE Class 9 Biology Question Bank Worksheet

Tissues

1. Draw a labeled diagram of neuron.

2. Write one term for the following:
a) joins muscle to bone
b) fat reservoir of our body
c) supporting, fills the space inside the organs and help in repair of tissues

3. Label the diagram and give one function each of a,b and c 

4. State the role of tendon and ligament in our skeletal system. 

5. Draw a labeled diagram of a tissue that transmits stimulus in our body. How does this tissue enables animal to move rapidly in response to stimuli?

6. a) State one point of difference between xylem and phloem.
b) Draw a neat diagram of xylem vessel and a tracheid.

7. A horse and a mango tree both are complex living organisms with specialized yet different tissue systems to perform basic life processes. Give two reasons for possessing different tissues to perform similar function. 

8. Write two basic structural differences between parenchyma and collenchyma tissues.

9. a) Uma started walking fast when she noticed some unknown faces are following her. Name the two types of tissues which facilitated the movement of her leg bones in response to stimulus.
b) Draw a diagram of any one of the above mentioned two tissues and label any two parts.

10. a) Voluntary muscles are also known as skeletal muscles. Justify.
b) Give two structural characteristics of these voluntary muscles.

11. State any one distinguishing feature and one similarity between two types of transporting tissues in plant.

12. Identify the simple permanent plant tissue with the following description and also mention their location in plant body
a) Cells have irregular wall thickenings
b) Tissues with large intercellular spaces and cells having large air cavity
c) Cells are long narrow and dead in nature

13. Identify the animal tissue from the given description and also mention their location in the human body:
a) cells are filled with fat globules and tissues acts as an insulator
b) has cylindrical branched cells and tissues show rhythmic relaxation and contraction throughout life.

14. Write three distinguishing features between cells of meristematic tissue and permanent plant tissue.

15. Write location and one function of each of the following:
a) cuboidal epithelium b) Glandular epithelium c) columnar epithelium

16. a) Draw the adipose connective tissue
b) Mention one region in the body where it is present and state one function of this tissue.

17. List any four features of meristematic tissue.

18. Give the location & functions of the following tissues:
a) cartilage
b) areolar tissue
c) adipose tissue

ONE MARK QUESTIONS:

1. Which organelle releases energy in the form of ATP?

2. Name the connective tissue which forms a packing material between the organs of the body.

3. What are macro nutrients and micronutrients?

4. Name 2 exotic breeds of cattle.

5. How does RER differs from SER?

6. Define plant breeding.

7. Expand a) ATP b) DNA

8. Name 2 common weeds that grow with wheat and paddy.

9. Which organelle is responsible for detoxifying poisons and drugs in vertebrates?

10. Name 2 semiautonomous organelles.

TWO MARK QUESTIONS:

1. Draw a neat labeled diagram of cell found in spinal cord.(nerve cell-neuron)

2. Define the terms a) composite fish culture b) crop rotation.

3. Differentiate between ligament and tendon.

4. a) Name the plant tissue which lacks vacuole?

b) Give an example of osmosis that takes place naturally in nature.

5. Why is it advisable to grow legume crop between 2 cereal crops?

6. Name one indigenous and one exotic breed of fowl.

7. Why plasma membrane is called selectively permeable membrane. How do substances like CO2 and H2O move in and out of cell?

8. Give difference between Bone and Cartilage, Blood and Lymph.

9. What will happen to plant cell if it is kept in a hypertonic solution.

10. Distinguish between Eukaryotic and prokaryotic cell.

THREE MARK QUESTIONS:

1. Draw a labeled diagram of Animal cell.

2. Mention the hazards of using fertilizers.

3. What are plastids mention the 3 types of plastids and their functions.

4. Differentiate between Parenchyma, Collenchyma and Sclerenchyma.

5. Compare the use of manures and fertilizers in maintaining soil fertility.

6. What are the differences between Broilers and Layers with respect to their purpose of breeding and daily food requirement? What necessary steps have to be taken to prevent the occurrence of infections in poultry farm?

7. Write about the structure and function of nucleus.

8. How many types of meristems are present in plants, on the basis of position.

9. How do cardiac muscle differ from Voluntary and Involuntary muscle in structure and function.

10. What are the functions of a) mitochondria b) chromosome c) lysosome.

FIVE MARK QUESTIONS:

1. Name any two types of permanent tissues and complex tissues write the functions of each in detail.

2. When a de-shelled egg is placed in concentrated salt solution for sometime what happens? Why?

3. i) What is meant by Bee- keeping?
ii) What are the important considerations to obtain higher yield of honey?
iii) Which variety of bee is commonly used for commercial honey production, write one important property of this variety.

4. (a) What is mixed cropping? What are its advantages?
b) What are the different ways by which insect pest attack the plants?
c) What is green manure?

5. Identify the type of tissue in the following
i) Heart (ii) Duct of salivary gland (iii) Vascular Bundles (iv) Larynx (v) Bark of tree (vi) Skin
(vii) Connects bone to muscle (viii) have fluid matrix (ix) stores fat (x) intestine.

MULTIPLE CHOICE QUESTIONS:

1. Which one fish is the surface feeder?
(a) Rohu
(b) Mrigal
(c) common carp
(d) catala

2. Adulteration of food item is
(a) Punishable under law
(b) Pardonable under law
(c) not considered a legal offence
d) not considered an offence at all.

3. Lignin deposit are found in walls of
(a) Collenchyma
(b) Parenchyma
(c)Sclerenchyma
(d) striated muscle

4. Human cheek cells are
(a) Rectangular
(b) round
(c) irregular
(d) spindle shaped.

5. Seema was asked to identify tissue on a give slide the cells are long, branched and multinucleated the cells are
(a) Striated
(b) smooth muscle
(c) Cardiac muscle
(d) none

6. Onion peel should be stained for
(a) 30min
(b) one hour
(c) 2-3 min
(d) 10 sec

7. Acid used to detect the presence of metanil yellow in sample of tur dal is
(a) HNO₃
(b) HCl
(c) H₂SO₄
(d) COOH-COOH

8. Animal cells are commonly stained with
(a) Methylene blue
(b) Safranin
(c) phenolphthalein
(d) Iodine solution

9. Food sample ideal for starsh test is
((a) Dal
(b) Mustard
(c) Rice 9
(d) Sugar

10. For observing plant tissue stain generally used is
(a) Methylene blue
(b) Safranin
(c) phenolphthalein
(d) Glycerine

11. The colour that indicates that Dal is adultered with mtanil yellow is
(a) Red
(b) Pink
(c) Brown
(d) Crimson

12. Temporary mount of a living organism is made in
(a) Alcohol
(b) acetone
(c) glycerine
(d) wax

13. The muscle that never fatigues is
(a) Striated muscle
(b) cardiac muscle
(c) un striated muscle
(d) none

14. On a slide mounting of the material should be done
(a) On the left side
(b) on the right side
(c) in the centre
(d) in the corner

15. Carbohydrates are stored in human body as
(a) Starch
(b) Glucose 9
(c) glycogen
(d) Sucrose

Q.1 State the full form of ATP.

Q.2 What do you mean by division of labour?

Q.3 Name the cell organelle which is able to destroy a damaged cell.

Q.4 Write any two functions of SER.

Q.5 Write 2 important characteristics of prokaryotic cell.

Q.6 Differentiate between the plasma membrane and cell wall.

Q.7 Name the plastid involved in conversion of a green tomato to red.

Q.8 How is a prokaryotic cell different from a eukaryotic cell?

Q.9 Who coined the term ‘cell’? How & when?

Q.10 Which organelle is known is known as the ‘power house of the cell’? Why?

Q.11 Which cell organelle detoxify poisons and drugs in liver of vertebrates?

Q.12 What is nucleoid? Draw a well labeled diagram of a prokaryotic cell?

Q.13 What is known as energy currency of the cell? Where it is produced?

Q.14 Write the postulates of cell theory. Who proposed this theory?

Q.15 Why is the cell called structural & functional unit of life?

Q.16 What are chromoplasts and leucoplasts? Give an example of chloroplast that has green pigment.

Q.17 What are chromosomes? Write their chemical composition.

Q.18 Write the relationship between chromatin material and chromosomes.

Q.19 What will happen to a plant cell if it is kept in:

a) Hypotonic solution b) Hypertonic solution

Q.20 What is plasmolysis? Under what condition it take place.

Q.21 A person takes concentrated salt solution after sometime he starts vomiting.
What is phenomenon responsible for such situation?

Q.22 Write the role of vacuoles in plant cells.

Q.23 What is the main function of each of the following cell components:
a) Ribosomes
b) Plasma Membrane
c) Chromosome
d) Golgi Apparatus

Q.24 What are genes? Where they are located?

Q.25 Why is endosomosis found in animal only?

Q.26 Draw a diagram of a plant cell & label the following parts:
a) Cell Wall
b) Nucleus
c) Vacuole
d) Golgi Apparatus

Q.27 Differentiate between unicellular & multicellular organism. Give 2 examples of each.

Q.28 Why is plasma membrane called the selectively permeable membrane?

Q.29 Name one feature that is similar and one dissimilar with respect to mitochondria and plastids.

Q.30 How does an amoeba obtain its food?

Q.1 In which Kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?

Q.2 Which division of plants is called the “amphibians of the plant Kingdom?

Q.3 What is classification? Why it is important?

Q.4 Which organisms are included in Kingdom Protista?

Q.5 What is binomial nomenclature? Give its advantages.

Q.6 Write down conventions and rules of binomial nomenclature.

Q.7 What do you think is a more basic characteristic for classifying organisms:
(i) The place where they live,
(ii) The kind of cells they are made of. Why?

Q.8 Name the various categories used in hierarchical classification of organisms.

Q.9 Who classified organisms into five kingdoms? What was the basis of this classification?

Q.10 What is species?

Q.11 Name the group in which:
(i) Seeds are naked.
(ii) Reproductive organs are flowers.

Q.12 Write the important characters of Protista.

Q.13 Draw a well labeled sketch of Paramaecium.

Q.14 Describe the main features of Kingdom Fungi.

Q.15 What is specialty of lichens?

Q.16 Write down the important features of Monera. Draw a labeled diagram of a bacterium.

Q.17 Why is India called a megadiversity centre?

Q.18 Draw a flow chart depicting classification of plant kingdom?

Q.19 Write four general characters of thallophyta.

Q.20 Distinguish between bryophytes and pteridophytes.

Q.21 Write the main features of pteridophytes. Give – 2 examples.

Q.22 What are cotyledons? Name & discuss important features of the two classes of angiosperms based on the no. of cotyledons.

Q.23 What are gymnosperms? Write down their important features.

Q.24 Name the group of plante in which embryo is naked.

Q.25 In which group of plants is fruit present?

Q.26 What type of nutrition is found in fungi?

Q.27 Enumerate the characteristic features of angiosperm?

Q.28 What are phanerogams? How they are different from cryptogams?

Q.29 Why are plants and animals so different?

Q.30 Name the plant structure, which helps in attaching the bryophytes to the substratum.

Q.31 Why is Euglena called plant-animal?

Q.32 Why are protozoa called early animals?

Q.33 Which division among plants has the simplest organisms?

ONE MARK QUESTIONS

1Q How does carbon dioxide or oxygen move across the cell membrane?

2Q Name the cell organelle which is known as packaging and dispatching unit of the cell?

3Q Name the two organelles in a plant cell that contain their own genetic material.

4Q Name the tissue which is present at the growing tips of stem and roots.

5Q Name the tissue which forms the lining of kidney tubules and ducts of salivary glands.

6Q Which tissue is responsible for movement in our body?

7Q Name the fibrous tissue with great strength but limited flexibility.

8Q Name four macro nutrients important for plants.

9Q What is green revolution?

10Q Name two fodder crops:

TWO MARK QUESTIONS

1Q How does fluid connective tissue differ from other connective tissues?

2Q Write two differences between meristematic and permanent tissues?

3Q What is the difference between parenchymatous tissue and collenchymatous tissue?

4Q The “ use of manure is better than the use of fertilizers”. Mention any two points in support of this statement.

5Q Differentiate between manures and fertilizers.

6Q Why is the plasma membrane called a selectively permeable membrane?

7Q Differentiate between Diffusion and Osmosis

8Q Define Plasmolysis. How does it occur?

9Q Draw a diagram of plant cell and label it.

10Q Why Lysosomes are known as Suicidal bags of cell give reason.

THREE MARK QUESTIONS

1Q Do you agree that “ A cell is a building unit of an organism”. If yes, explain why?

2Q Write the structural and functional difference between plasma membrane and cell wall.

3Q Animals of colder regions and fish of cold water have thicker layer of subcutaneous fat. Why?

4Q Differentiate between Voluntary and Involuntary muscles. Give one example for each type.

5Q Write one function each of the following.
A) Adipose tissue B) Sclerenchyma c) Cell wall

6Q Discuss the role of hybridization in crop improvement.

7Q Name any three factors for which crop variety improvement is done and explain?

8Q Define the following:
A) Mixed Cropping B) Inter Cropping C) Crop rotation

9Q i) How does cork act as a protective tissues?
ii) Draw a labeled diagram of a neuron.

10Q Define “Composite fish culture “. Differentiate between capture fishing and Culture fishing.

BIOLOGY WORK SHEET FOR FA2. – CLASS : IX

ONE MARK QUESTIONS

1Q Which structure protects the plant body against the invasion of parasites?

2Q Name the fibrous tissue with great strength but limited flexibility.

3Q Name the chief mechanical supporting tissues which helps in bending process in plants.

4Q Name the enucleate thin walled plant cells with perforated end walls.

5Q Name the tissues which make up the husk of coconut.

6Q What do you mean by Aerenchyma?

TWO MARK QUESTIONS

1Q How many types of elements are present in phloem?

2Q Write one point of difference between the following.
(a) Xylem and phloem (b) collenchyma and sclerenchyma.

3Q Write one function each of parenchyma and collenchymas

4Q List the characteristics of cork

5Q What would happen if the xylem of root of a plant is blocked?

6Q What is permanent tissue? give its types

7Q How are simple tissue different from complex tissues in plants .

THREE MARK QUESTIONS

1Q Write the differences between parenchyma and sclerenchyma.

2Q How does the cork act as a protective tissue?

3Q Why xylem and phloem are called complex tissues?
How are they different from one other?

4Q Draw a labeled diagram of collenchymas tissue.

5Q Give reason for,
1. It is difficult to pull out the husk of a coconut tree
2. Branches of a tree move and bend in high wind velocity.

SECTION-A ONE MARK QUESTION

1. Name two cell organelles that have their own genetic material.

2. What type of tissue is found at the shoot apex?

3. Define hybridization

4. Name the cell organelle responsible for protein synthesis

5. Which chemical is deposited in the cells of the Sclerenchyma tissue

6. Define the term Sustainable agriculture

7. Gve the term for the incipient nucleus of Prokaryotes.

8. Which tissue is commonly known as ‘packaging’ tissue?

9. Name any two common needs that grow with wheat and paddy.

10. Which organelle is called powerhouse of the cell and why?

SECTION B TWO MARKS QUESTIONS

1. A plant cell is placed in a hypotonic solution. What will happen? Will the cell burst? Why or why not?

2. Differentiate between parenchyma and collenchymas tissue. Draw a collenchyma tissue.

3. What is the advantage of intercropping? Give one example.

4. Why is plasma membrane is called selectively permeable membrane. How do substances like O2 and Co2 move in and out of the cell.

5. Differentiate between tendon and ligament.

6. Name two high yielding breeds of cows

7. What are the different types of endoplasmic reticulum? Write the functions of each.

8. What is the main function of vascular tissues in plants?

9. Give any two differences between micro and macronutrients.

10. Give the differences between diffusion and osmosis.

SECTION C THREE MARKS QUESTION

1. Write three differences between a prokaryotic cell and eukaryotic cell.

2. Name three different types of blood cells and give their functions.

3. Name the nutrients which plants get from air, water and soil.

4. Give three differences between epithelial tissue and connective tissue.

5. Give any three differences between mixed cropping and intercropping

6. Draw a neat labeled diagram of a plant cell. Name the organelle of this cell which is commonly called the ‘ power house of the cell’.

7. Draw a sketch to show the locations of meristematic tissues in a plant body and write the function of any two of them.

8. A) What is vermicompost?

b) What are advantages of compost fish culture?

C) What is pasturage?

9. What are the consequences of the following conditions?

a) A cell containing higher water concentration than the surrounding medium

B) A cell having low water concentration than the surrounding medium

C) A cell having equal water concentration to its surrounding medium.

10. Differentiate between manures and fertilizers? What the advantages of using manures.

Q1. Prokaryotes lack true nucleus explain.

Q2. What is membrane biogenesis?

Q3. What are grana? What role do they play?

Q3.What is the difference between endocytosis?

Q4. A person takes concentrated solution of salt. After sometime he starts vomiting which phenomena is responsible for such situation?

Q5.Why are pores necessary for nuclear envelope?

Q6. Name two cell organelles which are semiautonomous . In what respect are they similar and dissimilar.

Q7. How chromatin, chromosome and DNA related.

Q8. What would happen when eukaryotic cells are placed in hypertonic ,hypotonic and isotonic solution.

Q9. Name the nucleic acids that are present in animal cells.

Q10.Why do spinach look green papaya yellow and edible part of watermelon green.

CBSE Class 9 Biology Worksheet - Fundamental unit of life

Q1 Write the main function of leucoplast.

Q2 What is the function of SER in liver cells of vertebrates?

Q3 Why the RER appears rough?

Q4 Why viruses are not supposed to be living?

Q5 What is a nucleoid?

Q6 Why dry raisins placed in water swell up?

Q7 In which part of a plant chromoplasts are found?

Q8 Where are genes located?

Q9 What will happen if we keep a plant cell or animal cell in a

i) Hypotonic solution ii) Hypertonic solution iii) Isotonic solution.

Q10 Explain the importance of osmosis for living beings?

Q11 Give the historical development of cell theory.

Q12 Who coined the term “cell “ and how?

Q13 Write the contribution of (a) Robert Hooke, (b) Leeuwenhoek (c) Robert Brown

Q14 Draw a large diagram of an animal cell as seen through aan electron microscope. Label the parts that carry on the function of Respiration, secretion, protein synthesis, transport of material.

Q15 Which substance is responsible for transfer of characters from one generation to another?

CBSE Class 9 Chemistry Worksheet - Matter In Our Surrounding

1. What is matter? What are the physical states of matter?

2. With the help of an activity, show particulate nature of matter.

3. What are characteristics of particles of matter?

4. What is diffusion? Give an example.

5. Write any five characteristics of solids, liquids and gases.

6. Why can we smell hot food from a distance?

7. Why does a solid change into liquid on heating?

8. Define latent heat of fusion.

9. Give reason – A gas fills completely the vessel in which it is kept.

10. Why a wooden table should be called solid?

11. Why more serious burns are caused by steam at 1000c than water at same temperature?

12. Why can a sponge be compressed though it is a solid?

13. Carry out following conversion (a) 500c to Kelvin (b) 200 k to Celsius.

14. Name the conditions to liquefy a gas.

15. Why are clothes spread out for drying?

16. What kind of clothes is most suitable for summers? Why?

17. What is sublimation? Explain with help of an activity and a diagram.

18. Washed clothes dry up more quickly on a hot summer day than on a rainy day. Why?

19. What is the difference between evaporation and boiling?

20. Define latent heat of vaporization.

21. Wearing synthetic clothes in summers is usually avoided. Why?

22. How does water get cooled in an earthen pot?

23. What is dry ice?

24. Name the factors affecting evaporation.

25. How does evaporation cause cooling? Explain with example.

26. How can physical state of matter be changed?

CBSE Class 9 Chemistry Worksheet - IS MATTER AROUND US PURE

1. What are mixtures? Give examples.

2. What are pure substances?

3. Why do we call sugar a pure substance?

4. What are saturated and unsaturated solutions?

5. Define a solution.

6. What is a suspension? Give its example and properties.

7. Define concentration of a solution.

8. What is Tyndall effect?

9. What is the difference between True solution and colloids?

10. What are alloys? Why are alloys called as mixture?

11. Write the characteristics of brass.

12. Define solute and solvent.

13. What is solubility?

14. Give properties of a true solution.

15. Why do we need to separate mixtures?

16. How can we separate cream from milk?

17. Write the applications of centrifugation.

18. How can we separate a mixture of salt and ammonium chloride? Draw a diagram.

19. What is chromatography? Explain the process.

20. How can you separate copper sulphate from an impure sample?

21. What types of mixture are separated by fractional distillation process? Draw a diagram.

22. Draw a diagram to explain the process of separating acetone and water.

23. Explain with the diagram the method of separating kerosene oil from water by using a separating funnel.

24. What are physical and chemical changes?

25. Write difference between mixtures and compounds.

26. Give definitions of elements and compounds.

27. What are metals and non-metals?

28. If 110g of salt is present in 550 g of solution, calculate the concentration.

29. What is the concentration of a solution which contains 16 g of urea in 120 g of solutions?

30. How much water should be added to 15 g of salt to obtain 15% salt solution?

31. A solution contains 5.6 ml of alcohol mixed with 76 ml of water. Calculate the concentration of the solution.

32. How much water should be added to 12 ml of alcohol to obtain 12% alcohol solution?

33. If 25 ml of acetone is present in 150 ml of its aqueous solution, calculate the concentration.

ONE MARK QUESTIONS:

1. Gram seeds are soaked in water and upon becoming tender; they split into 2 equal halves. State the name of these 2 halves.

2. What is meant by biosphere?

3. Mention one method by which living organisms influence the formation of soil.

4. Name the man made component which is responsible for depletion of ozone layer.

5. What is green house effect?

6. Why water is necessary for living organisms?

7. Social harmony and good economic conditions are necessary for good health. Give reason.

8. Mention causes of global warming?

9. Write the name of the group of plants which produces seeds but not fruits.

10. List any two human activities that you think would lead to air pollution.

11. How would call the symbiotic relationship between fungi and certain blue green algae?

12. List two biotic components of biosphere.

13. State the phylum to which anteon (feather star) and asterias (starfish) belong.

14. What is the criterion for classification of organism belonging to kingdom Monera or Protista?

15. Who is known as “Father of Taxonomy.”

16. Name the organism found to be very sensitive to levels of contaminants like SO2 in air.

17. Give reason-Balanced diet is necessary for maintaining a healthy body.

18. Name two factors that make soil?

19. What is the name of the organism found in the noudle of leguminous plants?

20. The animals of which groups of kingdom animalia are cold blooded animals.

TWO MARK QUESTIONS:

1. Distinguish between Bryophyta and Thallophyta stating two examples each.

2. List four diseases for which vaccines have been developed.

3. Apart from sexual contact AIDS virus spreads by which other two means.

4. Fungi cannot be considered as non green plants. Why?

5. State two reasons Why Whales are not grouped with fishes?

6. List four ways of spreading communicable diseases.

7. Differentiate between biodegradable and non-biodegradable pollutants.

8. a) Define cryptogams?

b) Name the division of plant kingdom having amphibian plants.

9. List two ways in which soil erosion is caused?

10. What causes Acid rain? Mention any damage caused by it on living organism.

11. a) Name the phylum to which the following are included spider, cockroach, prawn, Housefly.

b) What is biodiversity?

12. a) List any three important features of vertebrates.
b) Name one Reptile.

13. Bats can fly still they are placed in mammal. Why?

14. a) Name the process that returns oxygen to the atmosphere.
b) Write the condition responsible for poor visibility in cold weather.

15. List two similarities and two differences between the structures/features of amoeba and euglena.

16. State in tabular form the method of transmission of each of the following diseases.
a) Cholera (b) HIV-AIDS (c) Malaria (d) Pneumonia

17. List two ways in which water is useful to living organisms.

18. a) Mention any two human activities which would be responsible for air pollution
b) How is Earth’s atmosphere different from Venus and Mars?
19. What is symbiotic life form. Mention the specific organisms which display the symbiotic relationship in this life form.

20. a) Identify two features possessed by all chordates.
b) In which class would place any organism which has-
i) a scaly exoskeleton and a bony endoskeleton.
ii) a scaly exoskeleton and lay eggs outside water.

THREE MARK QUESTIONS:

1. a) Describe principle of immunization.
b) Mention any two diseases that can be prevented by immunization.

2. Discuss with the help of suitable example three ways by which micro organisms can find entry into the human body.

3. Pick the odd one out and justify your choice by giving reasons.
i) Riccia, Marselia, Marchantia and Funaria.
ii) Crocodile, salamander, sparrow and bat.

4. a) It was diagnosed that Preeti suffers from Japanese encephalitis, which organ of Preeti’s body is affected?
b) How are antibiotics effective in the treatment of some diseases?
c) Will they help in curing Preeti’s disease? Why?

5. List in tabular form any three distinguishing features between the animals belonging to the ave group and mammalian group.

6. There are lots of advertisements through signboards and mass media about the childhood immunization under the Public Health Programme. State in brief the principle behind immunization. List three infectious diseases against which children are immunized in our country.

7. List any two basis of five kingdom classification proposed by the Robert Whittaker. Mention in brief the basis of classification between a) Bacteria and Fungi (b) Plants and animals

8. a) What are communicable diseases?
b) What are the common methods of transmission of diseases?

9. a)How can we prevent diseases? b)What is immunization?

10. Name the group which is called as Amphibians of plant kingdom. Site an example of this group also mention one important feature of the same group.

11. It is difficult to make antiviral medicine then making an antibacterial medicine. why?

12. What is the importance of classification?

13. Write three possible means for transmission of AIDS?

14. a) What is the basic principle of Vaccination?
b) Name two diseases that can be prevented by using vaccine.

15. a) Antibiotics do not work against viral infections. Give reason.
b) Name two viral infections transmitted by means of air.

16. Write one point of difference each, between the following:
a) Amphibians and Reptiles
b) Aves and Mammals.
c) Gymnosperms and Angiosperms

17. On what basis are plants and animals put into different categories? Write three points.

18. List names of three diseases caused by virus stating their mode of communication in each case.

19. What is the system of scientific naming of organisms called? State two important conventions followed while giving such names.

20. Give other name to the category of plants that are called phanerogams. How they are further classified on the basis of their seeds? Give example from each category.

21. The general way of preventing infections mostly relate preventing exposure to the disease agents? Explain the statement with three examples.

22. List three functions performed by the atmosphere to act as a blanket.

23. State briefly three harmful effects of burning of fossil fuels.

24. Draw a diagram of hydra and label the following parts: Tentacles, Stinging cells, Gastro vascular cavity, Epidermis.

25. State appropriate terms for the following:
i) Animals those are able to maintain a certain body temperature over a wide range of temperature in the environment-
ii) Plants which bear naked seeds-
iii) Animals which have pseudocoelom-

26. State two causes and two effects of depletion of ozone layer in the atmosphere.

27. a) What is meant by acid rain? How has it effected the environment and historical monuments?
b) What is smog? Name two diseases caused by smog.

FIVE MARK QUESTIONS:

1. a) State two characteristic features of vertebrates:
b) State reasons for each of the following statements:
i) Echidna and platypus lay eggs but considered as mammals -
ii) Forelimbs of birds are modified-
iii) Crocodiles have four chambered heart but are still reptiles-

2. a) State two characteristic features of amphibians.
b) Identify the following organisms.
i) Cold blooded animals that lay eggs in water and have three chambered heart-
ii) Spiny skinned organisms which have a peculiar water-driven tube system that they use for moving around-
iii) Organisms which have an open circulatory system having blood filled coelomic cavity-

3. What are the five kingdoms of whittaker? Give the most important characteristic feature of each kingdom.

4. With the help of a labeled diagram. Show a) nitrogen cycle in nature (b) Describe any two processes involved in the cycling of in N2 the environment.

5. With the help of a labeled diagram show the cycling of carbon in nature. What are the two ways in which carbon dioxide is fixed in the environment?

6. The following is a list of invertebrates. Classify them into different phyla giving one characteristic morphological feature to justify your classification.(a) Star fish (b) Nereis (c) Housefly (d)Sycon (e) Planaria.

7. a) What are diploblastic and triploblastic animals?
b) How are breathing organs of fish and lizard different?
c) What is notochord?

8. a) State two characteristic features of Bryophytes
b) Identify the class which the following belong:-
i) Cold blooded animals with scaly skin and two chambered heart.
ii) Egg laying warm blooded animals with four chambered heart.
iii) Cold blooded animals with scales and laying eggs near water.

9. What is nitrogen fixation? Why do plants need to fix nitrogen? Describe a labeled diagram to illustrate nitrogen cycle.

10. What are biogeochemical cycles? Draw a labeled diagram to illustrate cycling of oxygen in nature. Write the means of returning oxygen to the atmosphere.

11. What are the biogeochemical cycles? Which gas makes up 78%of our atmosphere and also a part of many molecules essential to life? Draw a flow chart to illustrate the cycle of this gas in nature.

12. State two forms in which the elemental oxygen is found in the earth’s atmosphere. Mention in brief the essential function performed by each at the place they are found. What are CFCs and why are these considered harmful for the life on the earth?

13. With the help of a labeled diagram show the cycling of carbon in nature. What are the two ways in which carbon dioxide is formed in the environment?

14. With the help of a labeled diagram show a) Nitrogen cycle in nature (b) Describe briefly any two processes involved in the cycling of N2 in the environment.

15. What is green house effect? Name the green house gases. In the following biogeochemical cycle name and define the process marked as X, Y, Z.

Q1. Name the main substance of which the cell wall is composed of.

Q2. State the role of photoperiod in crop production.

Q3. Name the plastids which have chlorophyll.

Q4. Which cell organelle would you associate with elimination of old and worn out cells?

Q5. Name the chemical substance which gets deposited in the walls of Sclerenchyma.

Q6. Mention the significance of meristems in plants.

Q7. State the ways in which phloem is functionally different from Xylem.

Q8. Which two factors bring about loss of food grains during storage? Give one example each.

Q9. Mention three different ways in which crop plants can be attacked by insect pests. Also suggest one control measure and two preventive measures against pests.

Q10. Write three distinguishing features between cells of meristematic and permanent plant tissues.

Q11. (a) Write two points of difference between nuclear region of a bacterial cell and nuclear region of an animal cell.

(b) Which structure present in the nuclear region of a living cell bear genes ?

Q12. (a) What do the terms ‘macronutrients’ and ‘micro-nutrients’ signify ?

(b) Briefly describe the formation of vermicompost and green manure.

(c) List two advantages of using manure for nutrient management.

Q13. Ajay, an illiterate farmer does not understand the difference between manure and fertilizers. Help him to differentiate between the two, in terms of their composition.

(a) Justify the use of manure highlighting two of its advantages.

(b) Mention one drawback of excessive use of fertilizers.

Q1. Name the main substance of which the cell wall is composed of.

Q2. State the role of photoperiod in crop production.

Q3. Name the plastids which have chlorophyll.

Q4. Which cell organelle would you associate with elimination of old and worn out cells?

Q5. Name the chemical substance which gets deposited in the walls of Sclerenchyma.

Q6. Mention the significance of meristems in plants.

Q7. State the ways in which phloem is functionally different from Xylem.

Q8. Which two factors bring about loss of food grains during storage? Give one example each.

Q9. Mention three different ways in which crop plants can be attacked by insect pests. Also suggest one control measure and two preventive measures against pests.

Q10. Write three distinguishing features between cells of meristematic and permanent plant tissues.

Q11. (a) Write two points of difference between nuclear region of a bacterial cell and nuclear region of an animal cell.

(b) Which structure present in the nuclear region of a living cell bear genes ?

Q12. (a) What do the terms ‘macronutrients’ and ‘micro-nutrients’ signify ?

(b) Briefly describe the formation of vermicompost and green manure.

(c) List two advantages of using manure for nutrient management.

Q13. Ajay, an illiterate farmer does not understand the difference between manure and fertilizers. Help him to differentiate between the two, in terms of their composition.

(a) Justify the use of manure highlighting two of its advantages.

(b) Mention one drawback of excessive use of fertilizers.

Q A Answer the following questions as directed.

Q 1 Write down the name of any two heterotrophic unicellular organisms.

Q 2 Write down the names of any three common stains that is used to identify the boundaries of cell and its parts in a school laboratory.

Q 3 Define the term Plasmolysis. List down any two functions of a vacuole.

Q 4 Draw a L.S of a shoot tip to show the location of any 3 types of meristematic tissue. List down any four properties of meristematic tissue too.

Q 5 Draw a neat and well labeled diagram of that part of a Mango plant which helps in transportation of food only.

Q 6 a.Write down the names and food requirement of any two high yielding exotic breeds of cattle.

b. Write down common and scientific names of any four species of honey bee.