Chief functions of leaves are
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- Photosynthesis (food production).
- Gaseous exchange (stomata).
- Transpiration (water loss).
- Other functions: Storage, protection.
- Gaseous exchange and photosynthesis
- Respiration and photosynthesis
- Respiration and Digestion
- Respiration and gaseous exchange
The Correct Option is A
Solution and Explanation
This question tests knowledge of the functions of leaves in plants.
Step 2: Detailed Explanation:
Leaves are the primary organs of plants responsible for:
- Photosynthesis: The process of synthesizing food using sunlight, water, and CO2.
- Gaseous exchange: Through stomata, leaves exchange gases (CO2 and O2) with the atmosphere.
Respiration (B): Occurs in all plant parts, not specifically a function of leaves.
Digestion (C): Not a function of leaves.
Respiration and gaseous exchange (D): Respiration is not the chief function of leaves.
Thus, the chief functions of leaves are photosynthesis and gaseous exchange.
Step 3: Final Answer:
Thus, the chief functions of leaves are gaseous exchange and photosynthesis, which corresponds to option (A).
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