Practice test

Plant morphology and physiology - Test Set 4

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Which one of the following features is an indication for modification of stem of a plant?
    1. Presence of ‘eye’ on potato
    2. ‘Scale’ found in onion
    3. ‘Tendril’ found in pea
    4. ‘Hair’ present in carrot
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  2. Question 2

    Which one of the following is not a primary function of a green leaf?
    1. Manufacture of food
    2. Interchange of gases
    3. Evaporation of water
    4. Conduction of food and water
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  3. Question 3

    Lungs of a plant are:
    1. Leaves
    2. Stems
    3. Flowers
    4. Roots
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  4. Question 4

    What is thick vein present in the middle of the leaf called?
    1. Midrib
    2. Leaf venation
    3. Reticulate
    4. Parallel venation
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  5. Question 5

    The red, orange and yellow colours of leaf is due to:
    1. Aldehydes
    2. Tannis
    3. Lignins
    4. Carotenoid
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  6. Question 6

    Leaves of many grasses are capable of folding and unfolding because:
    1. Their mesophyll is not differentiated into palisade and spongy parenchyma
    2. They have stomata on both sides of the leaf
    3. They have high levels of silica
    4. They have specialised bulliform cells
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  7. Question 7

    In cactus, the spines are the modified:
    1. Stem
    2. Stipulse
    3. Leaves
    4. Buds
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  8. Question 8

    Which one of the following parts of the pitcher plants becomes modified into-á pitcher?
    1. Stem
    2. Leaf
    3. Stipule
    4. Petiole
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  9. Question 9

    Solitary cymose inflorescence is observed in:
    1. Rose
    2. China rose
    3. Tuberose
    4. Cardenia
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  10. Question 10

    What is the role of pneumatophores?
    1. Protect plant from animals
    2. Get oxygen for respiration
    3. Supports plant in standing upright
    4. Helps plant for pollination
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  11. Question 11

    In soil, water that is readily available to plant roots is:
    1. Gravitational water
    2. Capillary water
    3. Hygroscopic water
    4. Rain water
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  12. Question 12

    Net movement of water from a dilute to a concentrated solution through a selectively permeable membrane is called:
    1. Diffusion
    2. Dispersion
    3. Osmosis
    4. Absorption
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  13. Question 13

    Desalination of seawater is done by using reverse osmosis. The pressure applied to the solution is:
    1. Larger then osmotic pressure
    2. Smaller the osmotic pressure
    3. Equal to atmospheric pressure
    4. Equal to osmotic pressure
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  14. Question 14

    Seeds swell when it is placed in water due to:
    1. Diffusion
    2. Endoosmosis
    3. Imbibition
    4. Plasmolysis
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  15. Question 15

    The process of imbibition involves:
    1. Diffusion
    2. Capillary action
    3. Absorption
    4. Both (a) and (b)
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  16. Question 16

    Photosynthesis occurs in:
    1. Nucleus
    2. Mitochondria
    3. Chloroplast
    4. Peroxisome
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  17. Question 17

    Which light is least effective in photosynthesis?
    1. Blue light
    2. Green light
    3. Red light
    4. Sunlight
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  18. Question 18

    What is the formula of glucose?
    1. C6H12O1
    2. C6H10O5
    3. C6H12O6
    4. C6O12O9
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  19. Question 19

    Solar energy is converted into ATP in:
    1. Mitochondria
    2. Chloroplast
    3. Ribosome
    4. Peroxisome
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  20. Question 20

    Which one of the following energy conversions takes place in carrying out the process of photosynthesis?
    1. Light to chemical energy
    2. Light to thermal energy
    3. Thermal to biochemical energy
    4. Heat to kinetic energy
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