Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

1. Introduction to Biochemistry

Nucleic Acids

Biochemistry

1. Introduction to Biochemistry

Nucleic Acids

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Multiple Choice

Which of the following substances is classified as a nucleic acid?

RNA

Polysaccharide

Fat

Amino acid

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Verified step by step guidance

Understand the classification of biomolecules: Biomolecules are broadly categorized into carbohydrates, lipids, proteins, and nucleic acids. Each category has distinct structural and functional characteristics.

Define nucleic acids: Nucleic acids are macromolecules that store and transmit genetic information. They are composed of nucleotide monomers, which consist of a sugar, a phosphate group, and a nitrogenous base. Examples include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

Analyze the options: Review each substance provided in the question: Polysaccharides are carbohydrates, fats are lipids, and amino acids are the building blocks of proteins. RNA, however, is a nucleic acid.

Identify RNA as the correct answer: RNA fits the definition of a nucleic acid because it is composed of nucleotides and plays a role in genetic information processing and protein synthesis.

Conclude the reasoning: RNA is classified as a nucleic acid, while the other substances listed (polysaccharide, fat, and amino acid) belong to different categories of biomolecules.