Biology Chapter Enzymes MCQs With Answers

In order to get the Biology Chapter Enzymes MCQs With Answers, you are on the right site. Enzymes are proteins and they act as biological catalysts in organisms. The MCQs with Answers are available here for the students who are going to appear in the MDCAT test. This chapter comprises the introduction and then the characteristics of enzymes. Then there is the mechanism of the action of these enzymes. There are four steps in which enzymes act. It is described in detail in this chapter. There are some factors that affect the enzymes’ action. These factors involve temperature, pH, and concentration. There is an important concept of Enzyme Inhibitors. They block the activity of enzymes. So that’s the brief introduction of this chapter. Now, check out the important Enzymes MCQs with Answers below. Solve the quiz and check out the results.

Biology Chapter Enzymes MCQs With Answers

6054

ENZYMES

1 / 20

1. Enzyme study is:

A) impossible

B) invitro possible

C) it is possible to study enzymes both invivo and invitro

D) in vivo possible

2 / 20

2. Enzyme groups recognized by IUB:

A) 2

B) 8

C) 4

D) 6

3 / 20

3. Which enzyme digests the major food source in Bean and Sunflower?

A) Amylase

B) Diastase

C) Protease

D) Lipase

4 / 20

4. Which one is hydrolase?

A) Enolase

B) Polymerase

C) Amylase

D) All of these

5 / 20

5. Temp. is going from 15 to 41° C, rate of reaction is going:

A) Up then down

B) Down

C) Down then up

D) Up

6 / 20

6. Active site of enzyme is produced by:

A) Fibrous structure

B) Globular structure

C) Both a and b

D) Charges

7 / 20

7. Active enzymes present in:

A) Viruses

B) Mycoplasma

C) Prions

D) Viroids

8 / 20

8. In feedback inhibition, a metabolic pathway is switched off by

A) Lack of substrate

B) Competitive inhibition

C) Accumulation of end product

D) Rise in temperature

9 / 20

9. Protein into peptones by:

A) Trypsin

B) Pepsin

C) both A and B

D) Erypsin

10 / 20

10. A group of enzymes called hydrolases acts upon:

A) All of these

B) Lipids

C) Proteins

D) Carbohydrate

11 / 20

11. Energy must be added for a chemical reaction to start: This is energy of

A) Activation

B) Oxidation

C) Entropy

D) Enthalpy

12 / 20

12. Co-enzyme is often formed from:

A) Protein

B) Vitamin

C) Inorganic ion

D) Lipid

13 / 20

13. An enzyme at below 5° C is:

A) Activated

B) Denatured

C) Un-activated

D) Destroyed

14 / 20

14. A metabolic pathway is a:

A) Route taken by chemicals through a solution

B) Routes taken by all enzymes in a specific medium

C) Route taken by a single particular enzyme

D) Sequence of enzyme controlled reactions

15 / 20

15. Co-enzyme is often a:

A) Vitamin

B) Inorganic ion

C) Lipid

D) Protein

16 / 20

16. Sucrase (invertase) acts on:

A) Sucrose and starch

B) Any disaccharide

C) Sucrose

D) Any organic Monomer

17 / 20

17. Enzymes that are slightly different in molecular structure but can perform similar activities are called:

A) Apoenzyme

B) Dehydrogenases

C) Kinases

D) Isozyme

18 / 20

18. Blocking of the active site of an enzyme temporarily is a type of:

A) Feedback Inhibition

B) Irreversible inhibition

C) Non- competitive inhibition

D) Competitive inhibition

19 / 20

19. A complete enzyme is:

A) Holoenzyme

B) Cofactor only

C) Apoenzyme

D) Coenzyme

20 / 20

20. Starch is converted into maltose by:

A) Maltase

B) Hydrozenase

C) Invertase

D) Diastase

Your score is

Biology Chapter Enzymes MCQs With Answers

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