BIOL 2402 Unit #3 Lecture Exam - Ch. 25 Metabolism & Energetics Questions with Detailed Verified Answers

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BIOL 2402 Unit #3 Lecture Exam - Ch. 25
Metabolism & Energetics Questions with
Detailed Verified Answers

Question: 1. Define metabolism.

Ans✅ ✅: the sum of all biochemical processes under way within the human body; it
includes anabolism and catabolism.

Question: 2. Define catabolism.

Ans✅ ✅: the breakdown of organic molecules into simpler components,
accompanied by the release of energy

Question: 3. Define anabolism.

Ans✅ ✅: the synthesis of new organic molecules from simpler components, and it
requires energy

Question: 4. What materials are required to begin glycolysis?

Ans✅ ✅: glucose molecules

appropriate cytosolic enzymes

ATP & ADP

NAD; a coenzyme that removes hydrogen atoms

Question: 5. How many ATP are invested in glycolysis?

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Ans✅ ✅: -2

+2

+2

= +2 Net Gain

Question: 6. Lysis of fructose-1,6-bisphosphate yields:
__________________________________________________________
_ and
__________________________________________________________
_

Ans✅ ✅: glyceraldehyde 3-phosphate and dihydroxyacetone phosphate 5

Question: 7. What is the fate of dihydroxyacetone-phosphate (DHAP) in
glycolysis?

Ans✅ ✅: It is converted to glyceraldehyde 3-phosphate (G3P).

Question: 8. The addition of inorganic phosphate to glyceraldehyde-3-
phosphate (G-3-P) requires that a hydrogen atom be removed from G-3-
P.
What happens to the hydrogen atom?

Ans✅ ✅: the atoms are rearranged, releasing a molecule of water H20

Question: 9. How many total ATP are produced in glycolysis?

Ans✅ ✅: 4

Question: 10. How many net ATP are produced in glycolysis?

Ans✅ ✅: 2

Question: 11. What is the final carbon product in glycolysis?

Ans✅ ✅: 2 three-carbon molecules of pyruvate

Question: 12. Is glycolysis an aerobic or anaerobic process?
Explain your answer.