Question

q3.3. recall that in cellular respiration, the processes of glycolysis, pyruvate processing, the citric acid cycle precede the electron transport chain. what is produced by these three prior processes? hint: click here to see an overview of the processes that is used by the electron transport chain? (hint: click here to see an overview of the major processes in cellular respiration.) each of the three processes produce atp, which carries potential energy to the etc. each of the three processes produce protons that the etc pumps into the intermembrane space. each of the three processes produce nadh, which carries potential energy to the etc. each of the three processes produce fadh2, which carries potential energy to the etc.

Explanation:

Step1: Recall cellular respiration processes

Glycolysis produces pyruvate. The citric - acid cycle precedes the electron transport chain. The electron transport chain (ETC) is the final stage of cellular respiration.

Step2: Identify energy - carrying molecules

NADH and FADH₂ are produced in glycolysis and the citric - acid cycle and carry potential energy to the ETC. These molecules donate electrons to the ETC. The ETC uses the energy from these electrons to pump protons into the intermembrane space, creating a proton - motive force that is used to produce ATP.

Answer:

Glycolysis and the citric - acid cycle produce NADH and FADH₂ which carry potential energy to the ETC. The ETC uses this energy to produce ATP and pump protons into the intermembrane space.