Table of contents

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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

3. Amino Acids

Essential Amino Acids

Biochemistry

3. Amino Acids

Essential Amino Acids

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Multiple Choice

How many essential amino acids are required by the human body for proper functioning?

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Step 1: Understand the concept of essential amino acids. Essential amino acids are those that the human body cannot synthesize on its own and must be obtained through the diet.

Step 2: Recall the total number of amino acids that are used to build proteins in the human body. There are 20 standard amino acids.

Step 3: Identify the subset of amino acids that are classified as essential. These are the amino acids that must be consumed because the body cannot produce them.

Step 4: Learn the names of the 9 essential amino acids: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Step 5: Compare the options provided in the question and select the correct number of essential amino acids required by the human body, which is 9.