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

10. Lipids

Fatty Acids

Biochemistry

10. Lipids

Fatty Acids

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Multiple Choice

Which type of fatty acid has the least number of hydrogen atoms per carbon atom?

Trans fatty acid

Monounsaturated fatty acid

Saturated fatty acid

Polyunsaturated fatty acid

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Verified step by step guidance

Understand the structure of fatty acids: Fatty acids are composed of a hydrocarbon chain with a carboxyl group (-COOH) at one end. The number of hydrogen atoms attached to the carbon atoms depends on the presence of double bonds in the chain.

Define the types of fatty acids: Saturated fatty acids have no double bonds, meaning all carbon atoms are fully saturated with hydrogen atoms. Monounsaturated fatty acids have one double bond, reducing the number of hydrogen atoms. Polyunsaturated fatty acids have two or more double bonds, further reducing the hydrogen atoms per carbon atom. Trans fatty acids are unsaturated fatty acids with a specific configuration of double bonds.

Compare the hydrogen-to-carbon ratio: Saturated fatty acids have the highest hydrogen-to-carbon ratio because they lack double bonds. Monounsaturated fatty acids have fewer hydrogen atoms due to one double bond. Polyunsaturated fatty acids have the least hydrogen atoms per carbon atom because they contain multiple double bonds.

Analyze the impact of double bonds: Each double bond in a fatty acid chain reduces the number of hydrogen atoms attached to the carbon atoms. Polyunsaturated fatty acids, with multiple double bonds, have the lowest hydrogen-to-carbon ratio compared to other types of fatty acids.

Conclude that polyunsaturated fatty acids have the least number of hydrogen atoms per carbon atom due to the presence of multiple double bonds in their structure.