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

6051

ENZYMES

1 / 20

1. Which one is hydrolase?

A) Amylase

B) Polymerase

C) Enolase

D) All of these

2 / 20

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

A) Protease

B) Lipase

C) Amylase

D) Diastase

3 / 20

3. Active site of enzyme is produced by:

A) Fibrous structure

B) Globular structure

C) Charges

D) Both a and b

4 / 20

4. Co-enzyme is often formed from:

A) Vitamin

B) Inorganic ion

C) Lipid

D) Protein

5 / 20

5. An enzyme at below 5° C is:

A) Activated

B) Un-activated

C) Destroyed

D) Denatured

6 / 20

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

A) Entropy

B) Oxidation

C) Enthalpy

D) Activation

7 / 20

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

A) Up

B) Up then down

C) Down then up

D) Down

8 / 20

8. Protein into peptones by:

A) Trypsin

B) Pepsin

C) Erypsin

D) both A and B

9 / 20

9. A group of enzymes called hydrolases acts upon:

A) All of these

B) Proteins

C) Carbohydrate

D) Lipids

10 / 20

10. Co-enzyme is often a:

A) Inorganic ion

B) Vitamin

C) Lipid

D) Protein

11 / 20

11. Enzyme groups recognized by IUB:

A) 4

B) 6

C) 2

D) 8

12 / 20

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

A) Feedback Inhibition

B) Competitive inhibition

C) Irreversible inhibition

D) Non- competitive inhibition

13 / 20

13. A complete enzyme is:

A) Holoenzyme

B) Apoenzyme

C) Coenzyme

D) Cofactor only

14 / 20

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

A) Isozyme

B) Kinases

C) Apoenzyme

D) Dehydrogenases

15 / 20

15. Enzyme study is:

A) invitro possible

B) impossible

C) in vivo possible

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

16 / 20

16. Active enzymes present in:

A) Viruses

B) Prions

C) Viroids

D) Mycoplasma

17 / 20

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

A) Rise in temperature

B) Accumulation of end product

C) Lack of substrate

D) Competitive inhibition

18 / 20

18. Sucrase (invertase) acts on:

A) Any disaccharide

B) Sucrose

C) Any organic Monomer

D) Sucrose and starch

19 / 20

19. Starch is converted into maltose by:

A) Diastase

B) Maltase

C) Hydrozenase

D) Invertase

20 / 20

20. A metabolic pathway is a:

A) Route taken by a single particular enzyme

B) Route taken by chemicals through a solution

C) Routes taken by all enzymes in a specific medium

D) Sequence of enzyme controlled reactions

Your score is

Biology Chapter Enzymes MCQs With Answers

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