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 correctly lists the components of a nucleic acid?

A monosaccharide, a disaccharide, and a polysaccharide

An amino group, a carboxyl group, and a side chain (R group)

A fatty acid, a glycerol, and a phosphate group

A nitrogenous base, a pentose sugar, and a phosphate group

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Verified step by step guidance

Step 1: Begin by understanding the structure of nucleic acids. Nucleic acids, such as DNA and RNA, are macromolecules that store genetic information. They are composed of repeating units called nucleotides.

Step 2: Break down the components of a nucleotide. Each nucleotide consists of three key parts: a nitrogenous base, a pentose sugar, and a phosphate group.

Step 3: Explain the nitrogenous base. Nitrogenous bases are organic molecules that contain nitrogen atoms. They are classified into purines (adenine and guanine) and pyrimidines (cytosine, thymine, and uracil).

Step 4: Describe the pentose sugar. The pentose sugar is a five-carbon sugar. In DNA, the sugar is deoxyribose, while in RNA, it is ribose. The sugar forms the backbone of the nucleic acid structure.

Step 5: Discuss the phosphate group. The phosphate group is attached to the pentose sugar and plays a critical role in linking nucleotides together through phosphodiester bonds, forming the nucleic acid polymer.