The role of O2 in cellular respiration in plants?

Question

The role of O2 in cellular respiration in plants?

Answer 1

Plants DO respire. It is similar to that of a human. O2 is the final elextron acceptor of the electron transport chain during oxidative phosphorylation.

Answer 2

Respiration & Oxygen production:-

* The energy for photosynthesis ultimately comes from absorbed photons and involves a reducing agent, which is water in the case of plants, releasing oxygen as a waste product. The light energy is converted to chemical energy (known as light-dependent reactions), in the form of ATP and NADPH, which are used for synthetic reactions in photoautotrophs. The overall equation for the light-dependent reactions under the conditions of non-cyclic electron flow in green plants is:

2 H2O + 2 NADP+ + 2 ADP + 2 Pi + light → 2 NADPH + 2 H+ + 2 ATP + O2

Answer 3

plants do not respire, they photosynthesize, o2 is their product