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

Unsaturated fatty acids:
a) Usually contain a double bond with cis stereochemistry.
b) Are found in both plants and animals.
c) Sometimes contain multiple double bonds.
d) Have lower melting points than the analogous saturated fatty acids.
e) All of the above are correct.

Usually contain a double bond with cis stereochemistry.

Are found in both plants and animals.

Sometimes contain multiple double bonds.

Have lower melting points than the analogous saturated fatty acids.

All of the above are correct.

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Verified step by step guidance

Understand the structure of unsaturated fatty acids: These are fatty acids that contain one or more double bonds between carbon atoms. The presence of these double bonds affects their physical and chemical properties.

Examine the stereochemistry of double bonds: Unsaturated fatty acids often have double bonds with cis stereochemistry, meaning the hydrogen atoms are on the same side of the double bond, causing a bend in the molecule.

Identify the sources of unsaturated fatty acids: They are found in both plants and animals, contributing to the diversity of lipids in nature.

Consider the possibility of multiple double bonds: Some unsaturated fatty acids, known as polyunsaturated fatty acids, contain more than one double bond, which further influences their properties.

Compare melting points: Unsaturated fatty acids generally have lower melting points than saturated fatty acids due to the kinks introduced by cis double bonds, which prevent tight packing of the molecules.