University:
Acadia University
Course:
BIOL 2663 | Marine Biology
Academic year:

2024
Views:

45

Pages:

2
Author:

Nabila n.

Quiz on Macromolecules 1. Which component is NOT found in a nucleotide? A. Sugar B. Nitrogenous base C. Fatty acid D. Phosphate group Answer: Fatty acid (C) A nucleotide is composed of a sugar, a phosphate group, and a nitrogenous base. 2. Which nitrogenous base is found in RNA but not in DNA? A. Cytosine B. Guanine C. Adenine D. Uracil Answer: Uracil (D) Uracil is a nitrogenous base unique to RNA, while thymine is found in DNA. 3. What describes the structure of DNA? A. Linear chain B. Single-stranded molecule C. Double-stranded helix D. Triple-stranded helix Answer: Double-stranded helix (C) DNA is characterized by its double-stranded helical structure. 2 4. What is the primary function of RNA? A. Storing energy B. Transmitting genetic information C. Involved in protein synthesis D. Providing structural support Answer: Involved in protein synthesis (C) RNA plays a crucial role in the process of protein synthesis. 5. Which macromolecule is primarily responsible for encoding genetic instructions? A. Nucleic acids B. Proteins C. Carbohydrates D. Lipids Answer: Nucleic acids (A) Nucleic acids, speciﬁcally DNA, encode the genetic instructions for an organism.