Question

In plants, respiration takes place

• A. During the day only.
• B. During the night only.
• C. All the 24 hours.
• D. At dusk.

Answer 1

The correct option is C All the 24 hours.

In green plants the process of photosynthesis depends on light because, it involves a photochemical process. This light dependent process is called light reaction. The dark reaction is independent of light and can occur in presence as well as absence of light. The process of respiration is independent of light. It does not involve any photochemical step. It occurs both in presence and absence of light i.e., all 24 hours.