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 of the following is an essential fatty acid?

Palmitic acid

Oleic acid

Stearic acid

Linoleic acid (omega-6)

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Understand the concept of essential fatty acids: Essential fatty acids are those that cannot be synthesized by the human body and must be obtained through the diet. They are typically polyunsaturated fatty acids.

Review the structure and classification of fatty acids: Fatty acids are classified based on their saturation (saturated, monounsaturated, polyunsaturated) and the position of double bonds in polyunsaturated fatty acids (omega-3, omega-6, etc.).

Identify the essential fatty acids: The two main essential fatty acids for humans are linoleic acid (omega-6) and alpha-linolenic acid (omega-3). These are required for various physiological functions, including cell membrane structure and signaling.

Compare the given options: Palmitic acid, oleic acid, and stearic acid are not essential fatty acids because they can be synthesized by the human body. Linoleic acid, however, is an omega-6 polyunsaturated fatty acid and is essential.

Conclude that linoleic acid is the correct answer: Based on the definition and characteristics of essential fatty acids, linoleic acid (omega-6) is the correct choice among the options provided.