NCERT Class 11 Biology Respiration In Plants Questions
EXERCISES 1. Differentiate between (a) Respiration and Combustion (b) Glycolysis and Krebs’ cycle (c) Aerobic respiration and Fermentation 2. What are respiratory substrates? Name the most common respiratory substrate. 3. Give the schematic representation of glyolysis…
NCERT Class 11 Biology Plant Growth and Development Questions
EXERCISES 1. Define growth, differentiation, development, dedifferentiation, redifferentiation, determinate growth, meristem and growth rate. 2. Why is not any one parameter good enough to demonstrate growth throughout the life of a flowering plant? 3. Describe briefly: (a)…
NCERT Class 11 Biology Photosynthesis in Higher Plants Questions
EXERCISES 1. By looking at a plant externally can you tell whether a plant is C3 or C4? Why and how? 2. By looking at which internal structure of a plant can you tell whether a plant is C3 or C4? Explain. 3. Even though a very few cells in a C4 plant carry out the…
NCERT Class 11 Biology Excretory Products and Their Elimination Questions
EXERCISES 1. Define Glomerular Filtration Rate (GFR) 2. Explain the autoregulatory mechanism of GFR. 3. Indicate whether the following statements are true or false : (a) Micturition is carried out by a reflex. (b) ADH helps in water elimination, making the urine…
NCERT Class 11 Biology Digestion and Absorption Questions
EXERCISES 1. Choose the correct answer among the following : (a) Gastric juice contains (i) pepsin, lipase and rennin (ii) trypsin, lipase and rennin (iii) trypsin, pepsin and lipase (iv) trypsin, pepsin and renin (b) Succus entericus is the name given to (i) a…
NCERT Class 11 Biology Breathing and Exchange of Gases
EXERCISES 1. Define vital capacity. What is its significance? 2. State the volume of air remaining in the lungs after a normal breathing. 3. Diffusion of gases occurs in the alveolar region only and not in the other parts of respiratory system. Why? 4. What are the major…
NCERT Class 11 Biology Body Fluids and Circulation Questions
EXERCISES 1. Name the components of the formed elements in the blood and mention one major function of each of them. 2. What is the importance of plasma proteins? 3. Match Column I with Column II : Column I Column II (a) Eosinophils…
NCERT Class 11 Biology Transport in Plants
EXERCISES 1. What are the factors affecting the rate of diffusion? 2. What are porins? What role do they play in diffusion? 3. Describe the role played by protein pumps during active transport in plants. 4. Explain why pure water has the maximum water potential. 5.…
NCERT Class 11 Biology The Living world
EXERCISES 1. Why are living organisms classified? 2. Why are the classification systems changing every now and then? 3. What different criteria would you choose to classify people that you meet often? 4. What do we learn from identification of individuals and populations? 5.…
NCERT Class 11 Biology Structural Organisation in Animals
EXERCISES 1. Answer in one word or one line. (i) Give the common name of Periplanata americana. (ii) How many spermathecae are found in earthworm? (iii) What is the position of ovaries in cockroach? (iv) How many segments are present in the abdomen of cockroach? (v)…
NCERT Class 11 Biology Neural Control and Coordination
EXERCISES 1. Briefly describe the structure of the following: (a) Brain (b) Eye (c) Ear 2. Compare the following: (a) Central neural system (CNS) and Peripheral neural system (PNS) (b) Resting potential and action potential (c) Choroid and retina 3. Explain the…
NCERT Class 11 Biology Morphology of Flowering Plants Questions
EXERCISES 1. What is meant by modification of root? What type of modification of root is found in the: (a) Banyan tree (b) Turnip (c) Mangrove trees 2. Justify the following statements on the basis of external features: (i) Underground parts of a plant are not always roots…
NCERT Class 11 Biology Mineral Nutrition
EXERCISES 1. ‘All elements that are present in a plant need not be essential to its survival’. Comment. 2. Why is purification of water and nutrient salts so important in studies involving mineral nutrition using hydroponics. 3. Explain with examples: macronutrients,…
NCERT Class 11 Biology Locomotion and Movements
EXERCISES 1. Draw the diagram of a sarcomere of skeletal muscle showing different regions. 2. Define sliding filament theory of muscle contraction. 3. Describe the important steps in muscle contraction. 4. Write true or false. If false change the statement so that it is true…