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Home /
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MDCAT Past Papers /
UHS /
Biology /
Chap No 3 /
2024 /
Quiz 1

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MDCAT Past Papers - UHS - Biology - Chap No 3 - 2024 Quiz

Attempt 10 MCQs on MDCAT Past Papers - UHS - Biology - Chap No 3 (Year 2024) | Quiz 1

1. Induced fit model of enzyme activity suggests that an enzyme:

Cannot modify its active sites
Can bind to a single substrate
Can catalyse related reaction
Usually belongs to non-regulatory enzyme

2. What happens to the enzyme after an enzyme catalyzed reaction

Reduced to inactive form
Changes into substrate
become inert
used for another reaction

3. Enzyme catalase protects the plants cell from:

Dehydration
Photorespiration
Toxic effect of alcohol
Protein loss metabolism

4. Which property of enzyme is helpful to carry out metabolic activities at room temperature?

Not sensitivity to pH
Does not change the speed of reaction
Highly specific
Required in large quantities

5. Optimum pH for pancreatic lipase is:

2
4
6
8

6. Enzymatic activity can be inhibited by:

Heavy metal ions
Methane
Mutase
Noble gases

7. A competitive inhibitor.

Accelerates the chemical reaction
Binds to the enzyme
Is irreversible
Is reversible

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