객관식
In the context of nucleic acid metabolism, what happens to NADH when it is oxidized?
143
views
1. Introduction to Biochemistry
Nucleic Acids
객관식
Which of the following statements best describes NAD$^+$?
A
NAD$^+$ is a coenzyme that functions as an electron carrier in redox reactions.
B
NAD$^+$ is a structural component of DNA.
C
NAD$^+$ is a nucleotide that directly encodes genetic information.
D
NAD$^+$ is an enzyme that catalyzes the synthesis of RNA.
검증된 단계별 안내1
Step 1: Begin by understanding the role of NAD$^+$ in biochemical processes. NAD$^+$ stands for Nicotinamide Adenine Dinucleotide, and it is a coenzyme involved in redox reactions, meaning it helps transfer electrons during metabolic processes.
Step 2: Eliminate incorrect options by analyzing their definitions. For example, NAD$^+$ is not a structural component of DNA, as DNA is composed of nucleotides like adenine, guanine, cytosine, and thymine, not NAD$^+$.
Step 3: Consider the statement that NAD$^+$ is a nucleotide that directly encodes genetic information. This is incorrect because NAD$^+$ does not participate in encoding genetic information; its primary role is in electron transfer during metabolic reactions.
Step 4: Evaluate the claim that NAD$^+$ is an enzyme that catalyzes the synthesis of RNA. This is also incorrect because NAD$^+$ is a coenzyme, not an enzyme, and it does not catalyze RNA synthesis.
Step 5: Conclude that the correct description of NAD$^+$ is that it functions as an electron carrier in redox reactions, facilitating the transfer of electrons in processes like glycolysis and the citric acid cycle.
관련 영상
관련 실천
