Question
If one molecule of glucose undergoes the reaction of glycolysis, what is produced?(1 point)
Responses
3 NADH and 1 FADH2
3 NADH and 1 FADH2
1 ATP, 3 NADH, and 1 Pyruvate
1 ATP, 3 NADH, and 1 Pyruvate
4 ATPs, 6 NADH, and 2 FADH2
4 ATPs, 6 NADH, and 2 FADH2
2 ATPs, 2 NADH, and 2 Pyruvate
2 ATPs, 2 NADH, and 2 Pyruvate
Responses
3 NADH and 1 FADH2
3 NADH and 1 FADH2
1 ATP, 3 NADH, and 1 Pyruvate
1 ATP, 3 NADH, and 1 Pyruvate
4 ATPs, 6 NADH, and 2 FADH2
4 ATPs, 6 NADH, and 2 FADH2
2 ATPs, 2 NADH, and 2 Pyruvate
2 ATPs, 2 NADH, and 2 Pyruvate
Answers
GPT-4o mini
During glycolysis, one molecule of glucose produces:
- 2 NADH
- 2 ATP (net gain, since 2 are consumed and 4 are produced)
- 2 Pyruvate
Therefore, the correct response is:
**2 ATPs, 2 NADH, and 2 Pyruvate**.
- 2 NADH
- 2 ATP (net gain, since 2 are consumed and 4 are produced)
- 2 Pyruvate
Therefore, 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 carry NADH and FADH2.
They carry NADH and FADH 2 .
They hold water bonds.
They hold water bonds.
They make ATP from ADP.
They make ATP from ADP.
They create ATP synthase.
Responses
They carry NADH and FADH2.
They carry NADH and FADH 2 .
They hold water bonds.
They hold water bonds.
They make ATP from ADP.
They make ATP from ADP.
They create ATP synthase.
GPT-4o mini
The primary function of the high-energy electrons in the electron transport chain (ETC) is:
**They make ATP from ADP.**
As the electrons are transferred through the chain, their energy is used to pump protons (H⁺ ions) across the mitochondrial membrane, creating a gradient that drives ATP synthesis via ATP synthase.
**They make ATP from ADP.**
As the electrons are transferred through the chain, their energy is used to pump protons (H⁺ ions) across the mitochondrial membrane, creating a gradient that drives ATP synthesis via ATP synthase.
What is the third step in cellular respiration?(1 point)
Responses
the citric acid cycle
the citric acid cycle
the electron transport chain
the electron transport chain
the Krebs cycle
the Krebs cycle
glycolysis
Responses
the citric acid cycle
the citric acid cycle
the electron transport chain
the electron transport chain
the Krebs cycle
the Krebs cycle
glycolysis
GPT-4o mini
The third step in cellular respiration is:
**the electron transport chain.**
The overall process of cellular respiration includes glycolysis (first step), the citric acid cycle (also known as the Krebs cycle, which is the second step), and finally the electron transport chain (the third step).
**the electron transport chain.**
The overall process of cellular respiration includes glycolysis (first step), the citric acid cycle (also known as the Krebs cycle, which is the second step), and finally the electron transport chain (the third step).
How many electrons must move down the Electron Transport Chain before energy is made?(1 point)
Responses
5
5
4
4
2
2
3
Responses
5
5
4
4
2
2
3
GPT-4o mini
The correct answer is **2**.
In the context of the electron transport chain (ETC), each pair of electrons (for example, from NADH or FADH2) must move through various protein complexes before contributing to the synthesis of ATP via ATP synthase. The movement of 2 electrons down the ETC leads to the pumping of protons and ultimately the production of ATP.
In the context of the electron transport chain (ETC), each pair of electrons (for example, from NADH or FADH2) must move through various protein complexes before contributing to the synthesis of ATP via ATP synthase. The movement of 2 electrons down the ETC leads to the pumping of protons and ultimately the production of ATP.
Which 3-carbon molecule is one of the final products of glycolysis?(1 point)
Responses
NAD+
NAD+
pyruvic acid
pyruvic acid
oxaloacetic acid
oxaloacetic acid
ADP
ADP
Responses
NAD+
NAD+
pyruvic acid
pyruvic acid
oxaloacetic acid
oxaloacetic acid
ADP
ADP
GPT-4o mini
The correct answer is **pyruvic acid**.
Pyruvic acid, or pyruvate, is the 3-carbon molecule that is one of the final products of glycolysis.
Pyruvic acid, or pyruvate, is the 3-carbon molecule that is one of the final products of glycolysis.
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