Q1. In which part of the plant does most of the photosynthesis occur?
Solution:
Most of the photosynthesis occurs in the leaves, where chloroplasts are abundant.
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Q2. Which structure in plants is primarily responsible for the uptake of water? (2021)
Solution:
Root hairs increase the surface area for water absorption from the soil.
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Q3. In which part of the plant does most transpiration occur?
Solution:
Most transpiration occurs in the leaves, where stomata are located to facilitate gas exchange and water loss.
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Q4. What is the term for the movement of water through a plant against gravity?
Solution:
Transpiration refers to the process of water movement through a plant and its evaporation from aerial parts, which helps in moving water against gravity.
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Q5. What is the role of root hairs in plants?
Solution:
Root hairs increase the surface area for water absorption from the soil, facilitating the uptake of water and nutrients.
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Q6. What is the main driving force for the movement of water in plants? (2023)
Solution:
Transpiration pull, created by the evaporation of water from the leaves, is the main driving force for water movement in plants.
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Q7. What is the term for the movement of water through a plant from roots to leaves?
Solution:
Translocation refers to the movement of water and nutrients through the plant, specifically from roots to leaves.
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Q8. What is the primary factor that affects the rate of photosynthesis in relation to water transport?
Solution:
Water availability is crucial for photosynthesis, as it is a raw material needed for the process.
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Q9. What is the term for the loss of water vapor from the aerial parts of the plant?
Solution:
Transpiration is the process of water vapor loss from the aerial parts of the plant, mainly through stomata.
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Q10. Which structure in the leaf is primarily responsible for gas exchange?
Solution:
Stomata are small openings on the leaf surface that allow for gas exchange, including the intake of carbon dioxide and the release of oxygen.
