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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

8. Protein Function

Hill Equation

Biochemistry

8. Protein Function

Hill Equation

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Multiple Choice

At a CO₂ partial pressure of 5 torr, the p₅₀ value for hemoglobin is 26 torr. What is the fractional saturation when n_H = 3 and pO₂ = 25 torr, a typical venous oxygen partial pressure?

1.1

0.68

0.12

0.88

0.47

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Verified step by step guidance

Understand the concept of fractional saturation (Y) in the context of hemoglobin, which is the fraction of oxygen-binding sites occupied by oxygen. It can be calculated using the Hill equation.

The Hill equation is given by:

Y = \frac{{p O 2}^{n}}{p}

₅₀n+pO2n, where Y is the fractional saturation, pO2 is the partial pressure of oxygen, p50 is the partial pressure at which hemoglobin is 50% saturated, and n is the Hill coefficient.

Substitute the given values into the Hill equation: