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 is the repeating monomer unit of a nucleic acid?

Nucleotide

Fatty acid

Monosaccharide

Amino acid

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Verified step by step guidance

Understand the structure of nucleic acids: Nucleic acids, such as DNA and RNA, are polymers made up of repeating monomer units. These monomers are essential for the storage and transmission of genetic information.

Identify the components of a nucleotide: A nucleotide consists of three parts: a phosphate group, a pentose sugar (either ribose in RNA or deoxyribose in DNA), and a nitrogenous base (adenine, guanine, cytosine, thymine, or uracil).

Compare the given options: Fatty acids are components of lipids, monosaccharides are simple sugars that form carbohydrates, and amino acids are the building blocks of proteins. None of these are related to nucleic acids.

Recognize the correct monomer unit: Nucleotides are the repeating monomer units that make up nucleic acids. They link together through phosphodiester bonds to form the backbone of DNA and RNA.

Conclude the reasoning: Based on the structure and function of nucleic acids, the correct answer is 'Nucleotide,' as it is the monomer unit responsible for forming these essential biomolecules.