300896 Lecture Notes - Lecture 15: Acetyl-Coa, Metabolic Pathway, Acetyl Group
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7. In metabolism, food gets oxidized and the coenzymes NAD+ and FAD are reduced.
True | |
False |
8. Which of the following does not undergo oxidation or reduction during metabolism?
A. lipids | |
B. Coenzyme A | |
C. carbohydrates | |
D. FAD |
9. Which of the following is not a coenzyme?
A. NAD+ | |
B. Coenzyme A | |
C. ATP | |
D. FAD |
10. Which of the following is false regarding FAD?
A. FAD is an oxidizing agent. | |
B. FAD is the oxidized form. | |
C. FAD is a coenzyme | |
D. FADH2 is an oxidizing agent. |
11. How many carbon atoms are present in an acetyl group?
A. 1 | |
B. 2 | |
C. 3 | |
D. 4 |
12. The purpose of coenzyme A is to deliver acetyl groups to the citric acid cycle.
True | |
False |
13. What reacts with NADH and FADH2 to form NAD+ and FAD?
A. carbon dioxide | |
B. water | |
C. ATP | |
D. oxygen (and H+) |
14. Which metabolic process oxidizes NADH and FADH2
A. electron transport chain | |
B. oxidative phosphorylation | |
C. citric acid cycle | |
D. hydrolysis |
15. Which metabolic process converts ADP to ATP?
A. electron transport chain | |
B. oxidative phosphorylation | |
C. citric acid cycle | |
D. hydrolysis |
Question 18
The process that forms new glucose in the liver is called ...
A. | glycogenolysis | |
B. | Krebs cycle | |
C. | lipolysis | |
D. | gluconeogenisis | |
E. | oxidative phosphorylation |
Question 57
A person exercises in their âfat burning zoneâ for 4 hours at 35% VO2peak. The O2 cost of exercise at that work rate is 0.5L/minute. Following exercise the subject rewards himself with an ice-cream sundae (700kcal). The following statement is true(assume 5kcal/lit of O2):
A. | The subject is in neutral energy balance | |
B. | The subject consumed fewer calories than they expended during exercise | |
C. | The subject consumed more calories than they expended during exercise | |
D. | Canât say |
Question 52
The primary purpose of the citric acid cycle is...
aerobic glycolysis | ||
gluconeogenesis using lactate | ||
the decarboxylation of carbon compounds to produce NADH. | ||
the shuttling of hydrogen ions through the inner mitochondrial membrane |
Question 51
In aerobic ATP production, the role of oxygen is to...
to keep the electron transport chain operational | ||
to accept electrons from the 3rd cytochrome and thereby oxidizing it so it can accept new electrons | ||
act as a oxidizing agent by accepting electrons from the electron transport chain and combining with hydrogen ions (protons) | ||
all of the above |
Question 50
Glucose is necessary for fatty acid oxidation because...
its derivative, pyruvate, is condensated with carbonic acid to form oxaloacetate, which in turn is a necessary carbon compound in the citric acid cycle | ||
it is needed to convert fatty acids to fatty acyl-CoA which in turn is oxidized to acetyl CoA | ||
glucose is decarboxylated into cytochrome oxidase which is a necessary intermediate in the citric acid cycle | ||
its derivative, acetyl CoA, is condensated with carbonic acid to form lactase, which in turn is a necessary carbon compound in the citric acid cycle |