If one molecule of glucose undergoes the reaction of glycolysis, what is produced?(1 point)
Responses
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
1 ATP, 3 NADH, and 1 Pyruvate
1 ATP, 3 NADH, and 1 Pyruvate
3 NADH and 1 FADH2
2 ATPs, 2 NADH, and 2 Pyruvate
They create ATP synthase.
2
pyruvic acid
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 create ATP synthase.
They create ATP synthase.
They make ATP from ADP.
They make ATP from ADP.
They carry NADH and FADH2.
What is the third step in cellular respiration?(1 point)
Responses
the electron transport chain
the electron transport chain
the citric acid cycle
the citric acid cycle
the Krebs cycle
the Krebs cycle
glycolysis
the electron transport chain
How many electrons must move down the Electron Transport Chain before energy is made?(1 point)
Responses
3
3
5
5
2
2
4
4
Which 3-carbon molecule is one of the final products of glycolysis?(1 point)
Responses
oxaloacetic acid
oxaloacetic acid
NAD+
NAD+
ADP
ADP
pyruvic acid
pyruvic acid
To determine what is produced when one molecule of glucose undergoes the reaction of glycolysis, you need to understand the process of glycolysis. Glycolysis is the first stage of cellular respiration, which occurs in the cytoplasm of cells, where glucose is broken down into smaller molecules.
Let's break down the process to find the correct answer:
1. Glycolysis begins with the activation of glucose, which requires the use of two ATP molecules. These two ATP molecules are converted into ADP (adenosine diphosphate) and inorganic phosphate (Pi), resulting in the formation of fructose-1,6-bisphosphate.
2. Fructose-1,6-bisphosphate is then split into two three-carbon molecules called glyceraldehyde-3-phosphate.
3. Each glyceraldehyde-3-phosphate molecule undergoes further transformations, resulting in the production of two molecules of NADH and four molecules of ATP (net gain of two ATP molecules). The NADH molecules carry high-energy electrons, which will be used in subsequent stages of cellular respiration.
4. The end product of glycolysis is two molecules of pyruvate. Each pyruvate molecule contains three carbon atoms.
Now, back to the options provided:
- Option 1: It states that 4 ATPs, 6 NADH, and 2 FADH2 are produced during glycolysis. This is incorrect because glycolysis only produces a net gain of 2 ATP molecules, not 4, and it does not produce any FADH2 molecules.
- Option 2: It states that 2 ATPs, 2 NADH, and 2 pyruvate molecules are produced during glycolysis. This is the correct answer. Glycolysis produces 2 ATP molecules, 2 NADH molecules, and 2 molecules of pyruvate.
- Option 3: It states that 1 ATP, 3 NADH, and 1 pyruvate molecule are produced during glycolysis. This is incorrect because glycolysis produces 2 ATP molecules, not 1.
- Option 4: It states that only 3 NADH and 1 FADH2 are produced during glycolysis. This is incorrect because glycolysis produces 2 NADH molecules, not 3, and it does not produce any FADH2 molecules.
Therefore, the correct answer is: 2 ATPs, 2 NADH, and 2 pyruvate molecules.