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 best describes the components of a triacylglycerol molecule?

One glycerol molecule and three fatty acid chains

One glycerol molecule and two fatty acid chains

Two glycerol molecules and two fatty acid chains

Three glycerol molecules and one fatty acid chain

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Verified step by step guidance

Understand the structure of a triacylglycerol molecule: A triacylglycerol (also known as a triglyceride) is a lipid molecule composed of one glycerol backbone and three fatty acid chains. Glycerol is a three-carbon molecule with hydroxyl (-OH) groups attached to each carbon.

Recognize the chemical reaction involved: Triacylglycerols are formed through a dehydration synthesis (esterification) reaction. Each hydroxyl group of the glycerol reacts with the carboxyl group (-COOH) of a fatty acid, releasing a water molecule and forming an ester bond.

Analyze the options provided: Evaluate each option to determine which one matches the correct structure of a triacylglycerol. The correct description should include one glycerol molecule and three fatty acid chains.

Eliminate incorrect options: Discard options that do not match the known structure of a triacylglycerol. For example, options with two glycerol molecules or fewer/more than three fatty acid chains are incorrect.

Select the correct answer: Based on the analysis, the correct description of a triacylglycerol molecule is 'One glycerol molecule and three fatty acid chains.'