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

6. Enzymes and Enzyme Kinetics

Enzymes

Biochemistry

6. Enzymes and Enzyme Kinetics

Enzymes

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Multiple Choice

Which type of skin care product removes dead skin cells by utilizing enzymes and hydroxy acids?

Exfoliant

Sunscreen

Toner

Moisturizer

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Verified step by step guidance

Step 1: Understand the function of each type of skin care product listed in the options. Exfoliants are designed to remove dead skin cells, often using enzymes or hydroxy acids. Sunscreens protect the skin from UV radiation, toners help cleanse and balance the skin, and moisturizers hydrate the skin.

Step 2: Learn about the mechanism of exfoliants. Enzymes like papain or bromelain break down proteins in dead skin cells, while hydroxy acids (e.g., alpha-hydroxy acids like glycolic acid or beta-hydroxy acids like salicylic acid) dissolve the bonds between skin cells, promoting exfoliation.

Step 3: Compare the mechanisms of action of exfoliants with the other products listed. Sunscreens, toners, and moisturizers do not utilize enzymes or hydroxy acids to remove dead skin cells.

Step 4: Recognize that exfoliants are specifically formulated to target dead skin cells, making them the correct answer based on their biochemical action.

Step 5: Conclude that the correct answer is 'Exfoliant,' as it aligns with the description of utilizing enzymes and hydroxy acids to remove dead skin cells.