Question

Which of the following is correct for respiration in plants?

• A. Respiration takes place only during day time
• B. Respiration takes place only during the night
• C. Respiration takes place both during the day and night
• D. Respiration takes place only when plants are not making food

Answer 1

The correct option is C

Respiration takes place both during the day and night

The correct answer is option C.

The explanation of the correct option

1. Respiration is a continuous chain of chemical reactions that are required to obtain energy and help organisms to survive.
2. In leaves, stomata that are small pores are found for the gaseous exchange.
3. Oxygen obtained by the stomata is consumed by leaves cells which disintegrate glucose into water and carbon dioxide.
4. Respiration not only takes place during daytime but also during nighttime to keep the plant alive.

The explanation of the incorrect option

Option A

Respiration not only takes place during the daytime but also during nighttime to keep the plant alive.

Option B

Respiration not only takes place during nighttime but also during the daytime to keep the plant alive.

Option D

Respiration takes place continuously in plants.

Final answer: Respiration takes place both during the day and night is a correct statement for the respiration in plants.