Enzyme Substrate Competitive Noncompetitive inhibitor inhibitor Which two substance both compete for the binding site a. on the enzyme shown in Figure 5.3? O d. and e. O c. and d. O The answer cannot be determined based on the information provided. Oc. and e.
Enzyme Substrate Competitive Noncompetitive inhibitor inhibitor Which two substance both compete for the binding site a. on the enzyme shown in Figure 5.3? O d. and e. O c. and d. O The answer cannot be determined based on the information provided. Oc. and e.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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Transcribed Image Text:### Competitive and Noncompetitive Inhibition in Enzymatic Reactions
Figure 5.3 illustrates various molecules involved in enzyme inhibition processes.
#### Key Components:
- **a.** Enzyme: A protein that catalyzes biochemical reactions.
- **b.** Substrate: The molecule upon which an enzyme acts.
- **c.** Competitive Inhibitor: A molecule that competes with the substrate for binding to the active site of the enzyme.
- **d.** Noncompetitive Inhibitor: A molecule that binds to an enzyme at a different site (not the active site), altering the enzyme's function.
#### Quiz Question:
**Which two substances both compete for the binding site a. on the enzyme shown in Figure 5.3?**
*Options:*
1. d. and e.
2. c. and d.
3. The answer cannot be determined based on the information provided.
4. c. and e.
**Correct Answer: c. and d.**
*Explanation:*
- In Figure 5.3, substances c (substrate) and d (competitive inhibitor) are depicted. Both of these substances compete directly for the active site of the enzyme. The noncompetitive inhibitor (e) binds at a different site, not competing with the substrate for the active site.
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