Cellular Respiration

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How many CO2 molecules are produced from the citric acid cycle per acetyl-CoA?

2

What is the net production of ATP from one glucose molecule in glycolysis?

2

What are the net products of glycolysis?

2 pyruvate, 2 NADH, 2 ATP

How many potential ATP can be produced when one moleule of glyceraldehyde-3-phosphate is put through glycolysis

3.5

How many direct ATP are made if fructose - 1, 6 - bisphosphate is put through glycolysis?

4

A sample of rats were fed glucose (C6H12O6) containing radioactive oxygen. After a few minutes, where would the radioactive oxygen be found?

CO2

Where does glycolysis take place in the cell?

Cytosol

Where in the cell does glycolysis take place?

Cytosol

The chemical compound 2, 4-dinitrophenol can disrupt the process of oxidative phosphorylation in the mitochondrial electron transport chain by causing which effect?

Dispersion of proton gradient

What is the function of the molecules NADH and FADH2 during the electron transport chain (ETC)?

Donate electrons to electron transport proteins

Of the following enzymes, which is activated via phosphorylation?

Fructose - 2, 6 - bisphosphatase

Which of the following processes in eukaryotic cellular respiration can occur in an anaerobic environment?

Glycolysis

Which of the following stages of cellular respiration generates ATP, regardless of the presence of oxygen?

Glycolysis

If cellular respiration were 100% efficient, the process should produce around eighty ATP, however, the actual yield is around thirty ATP. What happens to the rest of the chemical energy in glucose?

It is converted to heat

Oxygen is necessary for aerobic respiration, because ____.

It is the final electron acceptor in the electron transport chain

Which of the following reflects a function of fermentation?

It oxidizes NADH to NAD+

Why is oxygen essential for the electron transport chain?

It serves as the terminal electron acceptor

Where does the citric acid cycle take place in eukaryotic cells?

Mitochondria

Where does the Krebs cycle take place?

Mitochondrial matrix

Which of the following is not a product formed during the citric acid cycle?

NAD+

Which of the following is not a product of glycolysis?

NAD+

Which of the following molecules is the final electron acceptor in the electron transport chain during cellular respiration?

O2

Most of the ATP produced in cellular respiration comes from which of the following processes?

Oxidative phosphorylation

What happens to the electron transport chain when oxygen is not available?

Oxidative phosphorylation ceases and the cell reverts to fermentation after glycolysis

Cellular respiration is dependent on which of the following atoms?

Oxygen

Which of the following products is not created during glycolysis?

Oxygen

The divergence of aerobic respiration and fermentation is based on the chosen biochemical pathway of which substance?

Pyruvate

Which of the following processes requires an electron acceptor?

The electron transport chain requires an oxygen electron acceptor

Along what structure do electrons in the electron transport chain move?

The inner membrane of the mitochondria

Which of the following processes does not take place during glycolysis?

Via a complex chain of steps NADH and FADH2 transfer electrons to the process's final electron acceptor, O2

In comparison to fermentation, the aerobic pathways of glucose metabolism yield more _____.

adenosine triphosphate

The citric acid cycle takes place in the _____.

mitochondrial matrix


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