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 are the three main types of lipids found in biological membranes?

Amino acids, nucleotides, and fatty acids

Triglycerides, phospholipids, and sterols

Glycoproteins, glycolipids, and nucleic acids

Monosaccharides, disaccharides, and polysaccharides

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Verified step by step guidance

Step 1: Begin by understanding the structure and function of biological membranes. Biological membranes are primarily composed of lipids, proteins, and carbohydrates, with lipids playing a central role in forming the bilayer structure.

Step 2: Recall the three main types of lipids commonly found in biological membranes. These include phospholipids, sterols (such as cholesterol), and glycolipids. These lipids contribute to membrane fluidity, stability, and functionality.

Step 3: Analyze the options provided in the question. The first option (amino acids, nucleotides, and fatty acids) does not represent the main types of lipids in membranes, as amino acids and nucleotides are not lipids.

Step 4: Evaluate the second option (triglycerides, phospholipids, and sterols). While phospholipids and sterols are correct, triglycerides are not typically found in biological membranes; they are storage lipids.

Step 5: Confirm that the correct answer is phospholipids, sterols, and glycolipids, as these are the three main types of lipids found in biological membranes. Glycoproteins, nucleic acids, and carbohydrates are not lipids, and monosaccharides, disaccharides, and polysaccharides are carbohydrates, not lipids.