Biochemistry : Nucleic Acid Derivatives

Study concepts, example questions & explanations for Biochemistry

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Example Questions

Example Question #1 : Nucleic Acid Derivatives

What is the purpose of the pentose phosphate pathway (also known as the hexose monophosphate shunt or HMS)?

Possible Answers:

Regulation of gluconeogenesis

Detoxification of hepatic cells

Production of  for various anabolic reduction reactions and ribose-5-phosphate for nucleic acid production

Production of pentose phosphate for chemical signaling between cells

Correct answer:

Production of  for various anabolic reduction reactions and ribose-5-phosphate for nucleic acid production

Explanation:

The pentose phosphate pathway (also known as the hexose monophosphate shunt or HMS), mainly serves to produce  for anabolic reduction reactions and ribose-5-phosphate for nucleic acid production.

Example Question #139 : Macromolecule Structures And Functions

Which of the following is an example of a nucleoside?

Possible Answers:

Cytosine

Adenine

Guanosine monophosphate

Adenosine

Correct answer:

Adenosine

Explanation:

A nucleoside is composed of both a nitrogenous base as well as a sugar. Cytosine and adenine are just nitrogenous bases. Guanosine monophosphate (or GMP) is also composed of a phosphate group, which designates it as a nucleotide. The only nucleoside is adenosine.

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