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

Which of the following is a component of a phospholipid?

Amino acid

Carbon ring

Hydrophilic head

Long-chain alcohol

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Verified step by step guidance

Understand the structure of a phospholipid: A phospholipid is a type of lipid molecule that is a major component of cell membranes. It consists of two main parts: a hydrophilic (water-attracting) head and hydrophobic (water-repelling) tails.

Identify the hydrophilic head: The hydrophilic head of a phospholipid is typically composed of a phosphate group attached to a glycerol backbone. This head interacts with water and is polar in nature.

Compare the options provided: Evaluate each option to determine if it matches the structural components of a phospholipid. Amino acids are building blocks of proteins, not lipids. Carbon rings are found in molecules like steroids, not phospholipids. Long-chain alcohols are components of waxes, not phospholipids.

Recognize the correct answer: The hydrophilic head is indeed a component of a phospholipid, as it is the part that interacts with the aqueous environment in biological systems.

Conclude the reasoning: Based on the structural understanding of phospholipids, the correct answer is 'Hydrophilic head,' as it is a defining feature of these molecules.