Q10P Nearly all enzymes that require ... [FREE SOLUTION]

Chapter 8: Q10P (page 221)

Nearly all enzymes that require a nicotinamide cofactor use either $N A D^{+} / N A D H$ or $N A D P^{+} / N A D P H$ (Figure $11 - 3$ ) but not both. Compare the net charge of each cofactor.

Short Answer

Expert verified

The charges of $N A D^{+} / N A D H$ are $+ 1 / 0$ and $N A D P^{+} / N A D P H$ are $- 1 / - 2$ .

Step by step solution

Enzymes

Enzyme, a molecule that works as a catalyst in living organisms, controlling the pace at which chemical processes take place without changing itself.

Explanation

Since the hydrogen in the nicotinamide ring is uncharged, $N A D^{+}$ has a net charge of +1, while $N A D H$ has a net charge of zero. The phosphate group in $N A D P^{+}$ has a net charge of $- 1$ and $N A D P H$ has a negative net charge of $- 2$ .

Reduced forms

Hence, they have different charges.

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Nearly all enzymes that require a nicotinamide cofactor use either $N A D^{+} / N A D H$ or $N A D P^{+} / N A D P H$ (Figure $11 - 3$ ) but not both. Compare the net charge of each cofactor.

Short Answer

Step by step solution

Enzymes

Explanation

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Most popular questions from this chapter

Recommended explanations on Biology Textbooks

Chemistry of Life

Organ Systems

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Biological Organisms

Biological Molecules

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91影视

Nearly all enzymes that require a nicotinamide cofactor use either NAD+/NADH or NADP+/NADPH (Figure 11-3) but not both. Compare the net charge of each cofactor.

Short Answer

Step by step solution

Enzymes

Explanation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Biology Textbooks

Chemistry of Life

Organ Systems

Reproduction

Control of Gene Expression

Biological Organisms

Biological Molecules

Study anywhere. Anytime. Across all devices.

Nearly all enzymes that require a nicotinamide cofactor use either $N A D^{+} / N A D H$ or $N A D P^{+} / N A D P H$ (Figure $11 - 3$ ) but not both. Compare the net charge of each cofactor.