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

Functional Groups

Biochemistry

1. Introduction to Biochemistry

Functional Groups

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Multiple Choice

A monounsaturated fatty acid contains one of which functional group?

Hydroxyl group (–OH)

Carboxyl group (–COOH)

Amino group (–NH_2)

Double bond (C=C)

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Verified step by step guidance

Step 1: Begin by understanding the term 'monounsaturated fatty acid.' These are fatty acids that contain one double bond (C=C) in their hydrocarbon chain, distinguishing them from saturated fatty acids (no double bonds) and polyunsaturated fatty acids (multiple double bonds).

Step 2: Review the structure of fatty acids. Fatty acids consist of a long hydrocarbon chain and a terminal carboxyl group (–COOH). The carboxyl group is common to all fatty acids, regardless of saturation level.

Step 3: Examine the functional groups listed in the problem: Hydroxyl group (–OH), Carboxyl group (–COOH), Amino group (–NH₂), and Double bond (C=C). Note that the defining feature of a monounsaturated fatty acid is the presence of a single double bond (C=C) in the hydrocarbon chain.

Step 4: Understand why the other functional groups are not correct answers. The hydroxyl group (–OH) is typically found in alcohols, not fatty acids. The amino group (–NH₂) is characteristic of amino acids, not fatty acids. While the carboxyl group (–COOH) is present in all fatty acids, it does not define the 'monounsaturated' property.

Step 5: Conclude that the correct answer is the double bond (C=C), as it is the defining characteristic of monounsaturated fatty acids, differentiating them from other types of fatty acids.