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

6027

ENZYMES

1 / 20

1. Enzyme groups recognized by IUB:

A) 8

B) 2

C) 4

D) 6

2 / 20

2. Protein into peptones by:

A) Trypsin

B) Pepsin

C) both A and B

D) Erypsin

3 / 20

3. An enzyme at below 5° C is:

A) Un-activated

B) Denatured

C) Destroyed

D) Activated

4 / 20

4. 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

5 / 20

5. 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

6 / 20

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

A) Apoenzyme

B) Dehydrogenases

C) Isozyme

D) Kinases

7 / 20

7. Which one is hydrolase?

A) All of these

B) Enolase

C) Polymerase

D) Amylase

8 / 20

8. Active site of enzyme is produced by:

A) Globular structure

B) Both a and b

C) Charges

D) Fibrous structure

9 / 20

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

A) Entropy

B) Oxidation

C) Activation

D) Enthalpy

10 / 20

10. A group of enzymes called hydrolases acts upon:

A) Carbohydrate

B) All of these

C) Proteins

D) Lipids

11 / 20

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

A) Up

B) Down then up

C) Up then down

D) Down

12 / 20

12. Active enzymes present in:

A) Mycoplasma

B) Viruses

C) Viroids

D) Prions

13 / 20

13. Sucrase (invertase) acts on:

A) Sucrose

B) Any organic Monomer

C) Any disaccharide

D) Sucrose and starch

14 / 20

14. Enzyme study is:

A) impossible

B) invitro possible

C) in vivo possible

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

15 / 20

15. Starch is converted into maltose by:

A) Maltase

B) Hydrozenase

C) Invertase

D) Diastase

16 / 20

16. Co-enzyme is often a:

A) Vitamin

B) Lipid

C) Protein

D) Inorganic ion

17 / 20

17. Co-enzyme is often formed from:

A) Vitamin

B) Inorganic ion

C) Protein

D) Lipid

18 / 20

18. A complete enzyme is:

A) Apoenzyme

B) Cofactor only

C) Coenzyme

D) Holoenzyme

19 / 20

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

A) Non- competitive inhibition

B) Feedback Inhibition

C) Competitive inhibition

D) Irreversible inhibition

20 / 20

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

A) Diastase

B) Lipase

C) Amylase

D) Protease

Your score is

Biology Chapter Enzymes MCQs With Answers

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