If one molecule of glucose undergoes the reaction of glycolysis, what is produced?(1 point)

Responses

1 ATP, 3 NADH, and 1 Pyruvate
1 ATP, 3 NADH, and 1 Pyruvate

2 ATPs, 2 NADH, and 2 Pyruvate
2 ATPs, 2 NADH, and 2 Pyruvate

3 NADH and 1 FADH2
3 NADH and 1 FADH2

4 ATPs, 6 NADH, and 2 FADH2

9 answers

When one molecule of glucose undergoes glycolysis, the overall products are:

2 ATP, 2 NADH, and 2 Pyruvate.

So, the correct response is:

2 ATPs, 2 NADH, and 2 Pyruvate.

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

They make ATP from ADP.
They make ATP from ADP.

They hold water bonds.
They hold water bonds.

They create ATP synthase.
They create ATP synthase.

They carry NADH and FADH2.

The high-energy electrons in the electron transport chain (ETC) primarily function to drive the process of oxidative phosphorylation, which leads to the production of ATP. Specifically, they are transferred through a series of protein complexes and ultimately help create a proton gradient across the inner mitochondrial membrane, which is used to produce ATP from ADP by ATP synthase.

So, the correct response is:

They make ATP from ADP.

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

the electron transport chain
the electron transport chain

the Krebs cycle
the Krebs cycle

the citric acid cycle
the citric acid cycle

glycolysis

The third step in cellular respiration is:

the electron transport chain.

In the overall process of cellular respiration, the sequence is glycolysis (first step), the Krebs cycle (also known as the citric acid cycle, which is the second step), followed by the electron transport chain as the third step.

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

4
4

2
2

5
5

3
3

In the context of the Electron Transport Chain (ETC), specifically in relation to the production of ATP through oxidative phosphorylation, it's important to note that there isn’t a fixed number of electrons that must move to produce energy as ATP. Instead, electrons are continuously transferred along the chain, and as they move through various complexes, they create a proton gradient that leads to ATP synthesis.

However, if you are referring to the reduction of the final electron acceptor (oxygen), typically it is 4 electrons that are required to reduce one O2 molecule to 2 molecules of water (2 H2O).

Therefore, based on this general understanding, the correct response considering the reduction of oxygen is:

4

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

NAD+
NAD+

ADP
ADP

oxaloacetic acid
oxaloacetic acid

pyruvic acid

The 3-carbon molecule that is one of the final products of glycolysis is:

pyruvic acid.

During glycolysis, one molecule of glucose (which is a 6-carbon molecule) is converted into two molecules of pyruvic acid (each 3 carbons).