Question

similarities and differences between electron transport chain takes place during light reaction of photosynthesis and during last step of cellular respiration ​

Answer 1

Answer:

Cellular Respiration. Photosynthesis uses the energy obtained from light to free electrons from the chlorophyll pigments that collect the light. In cellular respiration the electron transport chain occurs after glucose has already been broken down.

Answer 2

Explanation:

Photosynthesis and cellular respiration are almost chemical mirror images of each other. When the Earth had a lot less oxygen in the air, photosynthetic organisms used carbon dioxide and produced oxygen as a by-product. Today, plants, algae, and cyanobacteria utilize this similar process of photosynthesis. All other organisms, including animals, have evolved to utilize some form of cellular respiration