Question

Leaves which appear wilted in the day time recover at night because :

• A. Respiration and translocation of organic substance both increases
• B. Light is essential for photo synthesis
• C. The plant is sleeping because of dark conditions
• D. The stomata close down, temperature decrease, transpiration is reduced and the plant is able to absorb more water from the soil

Answer 1

The correct option is D The stomata close down, temperature decrease, transpiration is reduced and the plant is able to absorb more water from the soil

Leaves which appear wilted in the day time, recover at night because the stomata close, temperature decreases, transpiration is reduced and the plant is able to absorb more water from the soil.

Leaves wilt when surrounding temperature rises. It happens due to the higher rate of transpiration.

During the night, transpiration reduces and absorption of water from soil increases. So, the correct answer is "option B"