What are the functions of the high-energy electrons in the electron transport chain?(1 point)

Responses

They hold water bonds.
They hold water bonds.

They carry NADH and FADH2.
They carry NADH and FADH 2 .

They create ATP synthase.
They create ATP synthase.

They make ATP from ADP.

7 answers

The correct response is: They make ATP from ADP.

High-energy electrons in the electron transport chain lead to the creation of a proton gradient, which is then used by ATP synthase to convert ADP into ATP.

What is the third step in cellular respiration?(1 point)
Responses

glycolysis
glycolysis

the citric acid cycle
the citric acid cycle

the electron transport chain
the electron transport chain

the Krebs cycle

The correct response is: the electron transport chain.

Cellular respiration consists of three main stages: glycolysis, the citric acid cycle (also known as the Krebs cycle), and the electron transport chain, with the electron transport chain being the third step.

How many electrons must move down the Electron Transport Chain before energy is made?(1 point)
Responses

2
2

3
3

4
4

5

The correct response is: 2.

In the electron transport chain, each pair of high-energy electrons (from NADH and FADH2) must move down the chain to facilitate the production of ATP through the process of oxidative phosphorylation.

Which 3-carbon molecule is one of the final products of glycolysis?(1 point)
Responses

pyruvic acid
pyruvic acid

NAD+
NAD+

ADP
ADP

oxaloacetic acid
oxaloacetic acid

The correct response is: pyruvic acid.

Pyruvic acid (or pyruvate) is the 3-carbon molecule that is one of the final products of glycolysis.