Question

what process can only be carried out by plants when in the presence of light?
light - dependent reactions
cellular respiration
homeostasis
dark reactions

Explanation:

• Light - dependent reactions are part of photosynthesis in plants and require light energy to occur.
• Cellular respiration occurs in both plants and animals, and it can happen with or without light.
• Homeostasis is the process of maintaining a stable internal environment and is not dependent on light for plants (or other organisms) to carry out.
• Dark reactions (Calvin cycle) of photosynthesis can occur in the absence of light, as long as the products of light - dependent reactions (ATP and NADPH) are available.

Answer:

light - dependent reactions