Discussion
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- Question
An endergonic reaction is one that
Options- A. requires energy in order to proceed
- B. releases energy for work
- C. gives off much heat
- D. looses energy
- Correct Answer
- requires energy in order to proceed
- 1. In the reaction, C6H12O6+ 6O2 ? 6CO2 + 6H2O + energy, which component is being oxidized?
Options- A. C6H12O6
- B. O2
- C. CO2
- D. H2O Discuss
- 2. If the Keq for an enzymatic reaction is greater than 1, the reaction
Options- A. will be endergonic
- B. can not occur without the input of energy
- C. both (a) and (b)
- D. none of these Discuss
- 3. Anthranilate synthase, the first enzyme of tryptophan biosynthesis after the branch point shows feedback inhibition and repression due to
Options- A. L-tryptophan
- B. D-L-tryptophan hydantoin
- C. L-serine
- D. pyruvate Discuss
- 4. The fact that ?-oxidation of fatty acids, occurs in the mitochondria whereas fatty acid synthesis occurs in the cytoplasmic matrix, is an example of regulation of enzymatic activity by the __________ mechanism.
Options- A. compartmentation
- B. induction
- C. competitive inhibition
- D. repression Discuss
- 5. Reduction is the
Options- A. loss of proton
- B. gain of electron
- C. loss of electron
- D. gain of protons Discuss
- 6. An exergonic reaction is one that
Options- A. requires energy to proceed
- B. releases energy for work
- C. gives off much heat
- D. looses energy Discuss
- 7. To a living organism, which of the following has the greatest amount of available energy per molecule?
Options- A. ATP
- B. ADP
- C. AMP
- D. H2O Discuss
- 8. Denaturation of an enzyme refers to the
Options- A. improper arrangement of the enzyme in a metabolic pathway
- B. loss of the enzymes proper shape
- C. formation of the enzymes proper shape
- D. formation of a new isozyme for that enzyme Discuss
- 9. Adenosine triphosphate is a type of
Options- A. fatty acid
- B. amino acid
- C. nucleotide
- D. steroid Discuss
- 10. The ability of CTP to bind to aspartate carbamoyltransferase and shut down the synthesis of more CTP is an example of
Options- A. enzyme induction
- B. enzyme repression
- C. feedback inhibition of enzyme activity
- D. none of these Discuss
Enzyme Reaction problems
Search Results
Correct Answer: C6H12O6
Correct Answer: none of these
Correct Answer: L-tryptophan
Correct Answer: repression
Correct Answer: gain of electron
Correct Answer: releases energy for work
Correct Answer: ATP
Correct Answer: loss of the enzymes proper shape
Correct Answer: nucleotide
Correct Answer: feedback inhibition of enzyme activity
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