Cellular Respiration
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
