Question

Which of these electron carriers are required during cellular respiration (check all that apply)?

NADPH NADH CO2 FADH2
a) NADPH and NADH
b) NADH and FADH2
c) NADPH and CO2
d) NADH, CO2, and FADH2

Answer 1

The correct electron carriers required during cellular respiration are NADH and FADH2, as they are involved in the electron transport chain to produce ATP.

Step-by-step explanation:

The electron carriers required during cellular respiration are NADH and FADH2. These carriers are involved in the electron transport chain, which is the third stage of cellular respiration. The process uses the energy from NADH and FADH2 to pump protons into the intermembrane space of mitochondria to establish a proton gradient.

The flow of protons back into the matrix facilitates the production of ATP. Notably, NADPH plays a role in photosynthesis rather than cellular respiration. Therefore, the correct answer to this question is b) NADH and FADH2.