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 best describes the primary functions of nucleic acids in biological systems?

They serve as the main source of cellular energy.

They store and transmit genetic information.

They provide structural support to cell membranes.

They catalyze the majority of metabolic reactions.

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Verified step by step guidance

Understand the role of nucleic acids in biological systems: Nucleic acids, such as DNA and RNA, are macromolecules responsible for storing and transmitting genetic information.

Differentiate nucleic acids from other macromolecules: Unlike carbohydrates (main source of energy), lipids (structural support for membranes), and proteins (catalysts for metabolic reactions), nucleic acids have a unique role in heredity and gene expression.

Focus on the key functions of DNA and RNA: DNA stores genetic information in the form of sequences of nucleotides, while RNA transmits this information to facilitate protein synthesis.

Eliminate incorrect options: Cellular energy is primarily derived from ATP (a nucleotide, not a nucleic acid), structural support is provided by lipids and proteins, and metabolic reactions are catalyzed by enzymes (proteins).

Conclude that the correct answer is: 'They store and transmit genetic information,' as this is the primary function of nucleic acids in biological systems.