Q35. Which of the following functions in plants is/are done through transpiration?

1. supplies water for photosynthesis.
2. transports minerals from the soil to all parts of the plant.
3. maintains the shape and structure of the plants by keeping cells turgid.

Select the correct answer using the code given below:

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3

Answer: D

Exp: Transpiration has more than one purpose; it

• creates transpiration pull for absorption and transport of plants
• supplies water for photosynthesis
• transports minerals from the soil to all parts of the plant
• cools leaf surfaces, sometimes 10 to 15 degrees, by evaporative cooling
• maintains the shape and structure of the plants by keeping cells turgid

An actively photosynthesizing plant has an insatiable need for water. Photosynthesis is limited by available water which can be swiftly depleted by transpiration. The humidity of rainforests is largely due to this vast cycling of water from root to leaf to atmosphere and back to the soil.

Q35. Which of the following functions in plants is/are done through transpiration?

1. supplies water for photosynthesis.
2. transports minerals from the soil to all parts of the plant.
3. maintains the shape and structure of the plants by keeping cells turgid.

Select the correct answer using the code given below:

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3

Answer: D

Exp: Transpiration has more than one purpose; it

• creates transpiration pull for absorption and transport of plants
• supplies water for photosynthesis
• transports minerals from the soil to all parts of the plant
• cools leaf surfaces, sometimes 10 to 15 degrees, by evaporative cooling
• maintains the shape and structure of the plants by keeping cells turgid

An actively photosynthesizing plant has an insatiable need for water. Photosynthesis is limited by available water which can be swiftly depleted by transpiration. The humidity of rainforests is largely due to this vast cycling of water from root to leaf to atmosphere and back to the soil.

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