Question

The first stage of cellular respiration, glycolysis, results in two pyruvate molecules. Those pyruvate molecules are then used in what stage of cellular respiration?

A. Active transport
B. Phosphorylation
C. The electron transport chain
D. The Krebs cycle

Answer 1

Q1: after glycolysis 2 molecules of pyruvate are converted into acetyl Co-A which then enters the Krebs Cycl.. so i think its C the Kreb's cycle

Answer 2

The correct answer would be d. the Krebs cycle.

Explanation:

Cellular respiration is a bunch of metabolic processes and reactions that take place in the cells to convert chemical energy from glucose into adenosine triphosphate and then release waste products. Cellular respiration can be divided into three cycles - glycolysis, the Krebs cycle, and the ETS cycle.

In glycolysis glucose converted into two molecules of pyruvate. Oxidative carboxylation of the pyruvate molecule produces acetyl CoA. Acetyl CoA enters into the Krebs cycle which utilizes them and produces ATP.

Thus, the correct option is D. the Krebs cycle.