1. In
monotropa the special type of root which absorbs nourishment is the ________.
a. Haustoria
b. Mycorrhizal root
c. Clinging root
d. Adventitious root
Answer: b. Mycorrhizal root
2. The product obtained in the anaerobic
respiration of yeast is ________
a. Lactic acid
b. Pyruvic acid
c. Ethanol
d. Acetic acid
Answer: c. Ethanol
3. The roots of a coconut tree are seen
growing far from the plant. Such a kind
of movement of root for want of water is ________.
a. Phot6otropism
b. Geotropism
c. Chemotropism
d. Hydrotropism
Answer:
d. Hydrotropism
4. The xylem in the plants is responsible for
________.
a. transport of water
b. transport of food
c. transport of amino acids
d. transport of oxygen
Answer:
a. transport of water
5. The autotrophic nutrition requires
a. CO₂ and water
b. chlorophyll
c. sunlight
d. all the above
Answer:
d. All the above
6. Leaf pores / stomata help in ________.
a. intake of CO₂ during photosynthesis
b. release of O₂ during photosynthesis
c. release of water vapour during
transpiration
d. all of these
Answer:
d. All the above
7. ________ of green plants are called
factories of food production.
a. Mitochondria
b. Chloroplasts
c. Endoplasmic reticulum
d. Nucleus
Answer:
b. chloroplasts
8. The special root – like struction of plant
parasites in cuscuta and viscumare called ________.
a. Rhizoids
b. Haustoria
c. Hyphae
d. stolons
Answer:
b. Haustoria
9. Pick out the odd one : The parts of the
alimentary canal are
a. Pharynx
b. Mouth
c. buccal cavity
d. pancreas
Answer:
d. Pancreas
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