7 Metabolism

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created 8 months ago by Jonathan_Miranda
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1

Acetyl CoA is completely oxidized into which two molecules?

A) ADP and NADH

B) NAD+ and ADP

C) H2O and CO2

D) NADH and ATP

C

2

Which of the following is true about ATP?

A) ATP is a low energy phosphate bond.

B) ATP is a high energy phosphate bond.

C) ATP is not a readily transferable chemical group.

D) ATP is not a stable molecule.

B

3

ATP is the most common form of energy because?

A) Hydrolysis of the phosphate bond releases an unusable amount of energy.

B) The products of ATP hydrolysis are useful.

C) The cost of making ATP is not enormous and can be tied to metabolic reactions in the cell.

D) b and c are correct

E) All the above

D

4

Which of the following is NOT an example of an energy substrate?

A) Proteins

B) Carbohydrates

C) Fats

D) All the above

E) None of the above

E

5

Which of the following statements is/are true about fats? (select all that apply)

A) Fats energy content is the highest of the substrates.

B) Fats are the most reduced of the substrates.

C) Fats don’t bind water.

D) Fats are our short-term storage units.

A, B, C

6

ATP + H 2 O →ADP + Pi is the equation for what reaction/process? (select all that apply)

A) ADP hydrolysis

B) ATP hydrolysis

C) Aminoacylation reaction

D) A catabolic process

B, D

7

Under anaerobic conditions, the end-product of glycolysis is converted to

A) H2O and CO2

B) Amino acids

C) Lactic acid

D) Hydrochloric acid

E) Acetic acid

C

8

What metabolic pathway/process is responsible for the formation of pyruvate from glucose? (select all that apply)

A) Anabolic

B) Catabolic

C) Anaerobic

D) Aerobic

E) All the above

B, C

9

In the Krebs cycle, what molecules are produced after one turn of the cycle, and how much of those molecules are produced?

A) Three NADH, two GTP, and one FADH2

B) Two molecules of CO2

C) Two NADH, one GTP, and one FADH2

D) 3 molecules of CO2

E) Three NADH, one GTP, and one FADH2

E

10

What are triacylglycerols composed of?

A) a GTP bound to 2 proteins

B) 1 fatty acid bound to an acetyl CoA

C) 3 fatty acids bound to a glycerol

D) 1 carbohydrate bound to CO2

C