Q. What is the main product of photosynthesis?
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A.
Oxygen
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B.
Glucose
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C.
Carbon dioxide
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D.
Water
Solution
The main product of photosynthesis is glucose, which serves as an energy source for the plant.
Correct Answer: B — Glucose
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Q. What is the role of auxins in plant growth?
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A.
Promote flowering
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B.
Stimulate root growth
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C.
Inhibit growth
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D.
Promote cell elongation
Solution
Auxins are plant hormones that promote cell elongation, which is crucial for growth and development in plants.
Correct Answer: D — Promote cell elongation
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Q. Which pigment is primarily responsible for the green color of plants?
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A.
Carotenoids
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B.
Chlorophyll
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C.
Xanthophyll
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D.
Anthocyanins
Solution
Chlorophyll is the pigment that gives plants their green color and is essential for photosynthesis, allowing plants to absorb light energy.
Correct Answer: B — Chlorophyll
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Q. Which process describes the movement of water from the roots to the leaves of a plant?
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A.
Translocation
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B.
Transpiration
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C.
Absorption
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D.
Capillarity
Solution
Translocation refers to the movement of water and nutrients through the plant, specifically from the roots to the leaves.
Correct Answer: A — Translocation
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Q. Which process involves the movement of water from the roots to the leaves?
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A.
Transpiration
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B.
Photosynthesis
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C.
Respiration
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D.
Germination
Solution
Transpiration is the process through which water is absorbed by plant roots and then evaporated from the leaves, creating a continuous flow of water.
Correct Answer: A — Transpiration
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