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 organic molecules are composed of a nitrogenous base, a monosaccharide, and a phosphate group?

Nucleotides

Fatty acids

Monosaccharides

Amino acids

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Verified step by step guidance

Step 1: Begin by analyzing the components mentioned in the problem: nitrogenous base, monosaccharide, and phosphate group. These are key structural elements of certain organic molecules.

Step 2: Recall the structure of nucleotides. Nucleotides are composed of three parts: a nitrogenous base (such as adenine, guanine, cytosine, thymine, or uracil), a monosaccharide (specifically a pentose sugar like ribose or deoxyribose), and a phosphate group.

Step 3: Compare the structures of the other options provided (Fatty acids, Monosaccharides, and Amino acids) to the components listed in the problem. Fatty acids consist of a hydrocarbon chain and a carboxyl group, monosaccharides are simple sugars, and amino acids contain an amino group, a carboxyl group, and a side chain.

Step 4: Eliminate the options that do not match the structural components described in the problem. Fatty acids, monosaccharides, and amino acids do not contain all three components (nitrogenous base, monosaccharide, and phosphate group).

Step 5: Conclude that nucleotides are the correct answer, as they are the only organic molecules composed of a nitrogenous base, a monosaccharide, and a phosphate group.