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

7. Enzyme Inhibition and Regulation

Enzyme Inhibition

Biochemistry

7. Enzyme Inhibition and Regulation

Enzyme Inhibition

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Multiple Choice

Which cellular process is primarily responsible for maintaining the optimal pH environment for enzyme function within a cell?

Protein phosphorylation

Allosteric regulation

Feedback inhibition

Buffering by intracellular buffer systems

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Verified step by step guidance

Understand the importance of pH in cellular processes: Enzymes function optimally within a specific pH range, and deviations can lead to reduced activity or denaturation. Maintaining pH is crucial for cellular homeostasis.

Learn about intracellular buffer systems: Buffer systems are chemical solutions that resist changes in pH when acids or bases are added. In cells, these systems help stabilize pH by neutralizing excess hydrogen ions (H⁺) or hydroxide ions (OH⁻).

Explore the role of buffering in enzyme function: Intracellular buffer systems, such as the bicarbonate buffer system or phosphate buffer system, maintain the pH environment necessary for enzymes to perform their catalytic functions effectively.

Differentiate buffering from other processes: Protein phosphorylation, allosteric regulation, and feedback inhibition are mechanisms that regulate enzyme activity but do not directly maintain pH. Buffering is the primary process for pH stabilization.

Conclude that buffering by intracellular buffer systems is the correct answer: This process ensures the optimal pH environment for enzyme function, highlighting its critical role in cellular homeostasis.