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

Lipids

Biochemistry

1. Introduction to Biochemistry

Lipids

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Multiple Choice

Which structural feature of fats makes them highly efficient for energy storage compared to other macromolecules?

They have a high proportion of polar functional groups.

They are composed of repeating monosaccharide units.

They contain peptide bonds between amino acids.

They have long hydrocarbon chains with many C–H bonds.

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Verified step by step guidance

Understand the role of fats in energy storage: Fats are a type of lipid, and their primary function in the body is long-term energy storage. They are more efficient than carbohydrates or proteins for this purpose due to their chemical structure.

Examine the structural features of fats: Fats are composed of glycerol and fatty acid chains. The fatty acid chains are long hydrocarbon chains, which consist of carbon (C) and hydrogen (H) atoms bonded together.

Analyze the energy content of C–H bonds: The C–H bonds in hydrocarbon chains are nonpolar and store a significant amount of chemical energy. When these bonds are broken during metabolic processes, they release a large amount of energy.

Compare fats to other macromolecules: Unlike carbohydrates (which have polar functional groups) or proteins (which contain peptide bonds), fats have a higher proportion of C–H bonds and fewer polar groups, making them more energy-dense.

Conclude why fats are efficient for energy storage: The long hydrocarbon chains with many C–H bonds allow fats to store more energy per gram compared to other macromolecules, making them highly efficient for energy storage.