CBSE Class 9 Science Fundamental Unit of Life Worksheet Set G

Read and download free pdf of CBSE Class 9 Science Fundamental Unit of Life Worksheet Set G. Download printable Science Class 9 Worksheets in pdf format, CBSE Class 9 Science Chapter 5 The Fundamental Unit of Life Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 9 Assignments and practice them daily to get better marks in tests and exams for Class 9. Free chapter wise worksheets with answers have been designed by Class 9 teachers as per latest examination pattern

Chapter 5 The Fundamental Unit of Life Science Worksheet for Class 9

Class 9 Science students should refer to the following printable worksheet in Pdf in Class 9. This test paper with questions and solutions for Class 9 Science will be very useful for tests and exams and help you to score better marks

Class 9 Science Chapter 5 The Fundamental Unit of Life Worksheet Pdf

Question. The first person to observe a cell under microscope was
(A) M. Schleiden
(B) T. Schwann
(C) Robert Hook
(D) A.V.Leeuwenhoek
Answer : C

Question. Which of the following is the longest cell of animal kingdom?
(A)Bacteria
(B) Nerve cell
(C) Virus
(D) Muscle cell
Answer : B

Question. Plasma membrane is made up of
(A) Proteins and carbohydrates1
(B) Proteins and lipids
(C) Proteins and nucleic acids
(D) Proteins, some nucleic acids and lipids
Answer : B

Question. The word cell was coined by
(A) Robert hooke
(B) Weismann
(C) Cuvier
(D) Darwin
Answer : A

Question. Nucleus discovered by
(A) Robert Hooke
(B) Robert Brown
(C) Dujardin
(D) Purkinje
Answer : B

Question. Plant cell wall is mainly composed of
(A) Sugars
(B) Cellulose
(C) Proteins
(D) lipids
Answer : B

Question. Plasma membrane is –
(A) Impermeable
(B) formed of cellulose
(C) selectively permeable
(D) nonselective
Answer : C

Question. Cell theory was propounded by
(A) Morgan
(B) Halden
(C) Schleiden and Schwann
(D) Robert Hooke
Answer : C

Question. Smallest cells so far known are
(A) Bacteria
(B) blue green algae
(C) PPLOs
(D) human egg
Answer : C

Question. Which one of the following is an example of prokaryotic cell?
(A)Typical plant cell
(B) Typical animal cell
(C) Bacteria
(D) None of these
Answer : C

Question. What is cytology?
(A) Study of cytoplasm
(B) Study of structure and composition of cell
(C) Study of animal cell only
(D) Study of cell only
Answer : B

Question. Ribosome was named by –
(A) Palade
(B) Porter
(C) de Duve
(D) Koliker
Answer : A

Question. Nucleus was discovered of
(A) Robert Brown
(B) Robert Hooke
(C) A.V. Leeuwenhoek
(D) Schwann
Answer : A

Question. A solution is said to be hypotonic when
(A) Concentration of medium is higher than that of the cell
(B) Concentration of medium is equal to that of the cell
(C) Concentration of medium is lower than that of the cell
(D) None of the above are correct.
Answer : C

Question. Cell wall shows
(A) Complete permeability
(B) semipermeability
(C) Differential permeability
(D) impermeability
Answer : A

Question. Ribosome consist of –
(A) DNA and protein
(B) RNA and protein
(C) RNA and amino acids
(D) RNA and DNA
Answer : B

THE FUNDAMENTAL UNIT OF LIFE

1 What is a cell and who discovered?
 
2 Name the three important parts of a typical cell. Give one important function of each of them.
 
3 1. What is the difference between plasma membrane and cell wall?
 
2. Cell membrane is known as “selectively permeable membrane”. Give reason
 
4 Define the following
 
1. Osmosis with an example
 
2. Diffusion with an example
 
3. Plasmolysis
 
5 What will happen if
 
1. A cell contains higher water concentration than the surrounding medium.
 
2. A cell having lower water concentration than the surrounding medium.
 
3. A cell having same water concentration on both the sides.
 
6 Where do the lipids and proteins constituting the cell membrane get synthesized?
 
7 1. What are the functions of chromosomes?
 
2. Where are genes located?
 
3. Write the full form of DNA
 
8 Enumerate the difference between a prokaryotic and Eukaryotic cell.
 
9 1. What is the importance of a nucleus.
 
2. Write one important function of mitochondria.
 
3. Which cell organelle is called “kitchen “ of the cell?
 
10 Describe the structure of a plastid. Name the types of plastids and write the functions of each.
 
11 Why the cell is called the structural and functional unit of life?
 
12 How do substances like CO2 and water move in and out of the cell? Explain
 
13 1. Name two organelles that contain their own genetic material.
 
2. Where are protein synthesized inside the cell?
 
14 What would happen if the plasma membrane ruptures or breaks down?
 
15 Why are lysosomes known as the “suicide bag” of the cell?
 
16 1. Give two examples of the organelles absent in animal cells but are present in plant cells.
 
2. Write one function of each 1. Cell wall 2. ER
 
17 Define the term Endocytosis with an example.
 
18 Why does the skin of your finger shrink when you wash clothes for a long time?
 
19 Draw a well labeled diagram of a prokaryotic cell.
 
20 Draw a well labeled diagram of a typical plant cell.

 

Please click on below link to download CBSE Class 9 Science Fundamental Unit of Life Worksheet Set G

Chapter 5 The Fundamental Unit of Life CBSE Class 9 Science Worksheet

The above practice worksheet for Chapter 5 The Fundamental Unit of Life has been designed as per the current syllabus for Class 9 Science released by CBSE. Students studying in Class 9 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 9 Science on a daily basis. All the latest practice worksheets with solutions have been developed for Science by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 9 Science students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 9 Science to develop the Science Class 9 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 9 Science designed by our teachers. After solving these you should also refer to Class 9 Science MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 9 Science which you can use to further make yourself better in Science.

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