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

6110

ENZYMES

1 / 20

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

A) Competitive inhibition

B) Non- competitive inhibition

C) Feedback Inhibition

D) Irreversible inhibition

2 / 20

2. An enzyme at below 5° C is:

A) Denatured

B) Un-activated

C) Destroyed

D) Activated

3 / 20

3. A complete enzyme is:

A) Holoenzyme

B) Cofactor only

C) Coenzyme

D) Apoenzyme

4 / 20

4. Starch is converted into maltose by:

A) Diastase

B) Invertase

C) Maltase

D) Hydrozenase

5 / 20

5. Enzyme study is:

A) impossible

B) in vivo possible

C) invitro possible

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

6 / 20

6. Co-enzyme is often formed from:

A) Vitamin

B) Protein

C) Inorganic ion

D) Lipid

7 / 20

7. Co-enzyme is often a:

A) Lipid

B) Vitamin

C) Protein

D) Inorganic ion

8 / 20

8. Active site of enzyme is produced by:

A) Charges

B) Fibrous structure

C) Globular structure

D) Both a and b

9 / 20

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

A) Activation

B) Entropy

C) Enthalpy

D) Oxidation

10 / 20

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

A) Diastase

B) Lipase

C) Amylase

D) Protease

11 / 20

11. Protein into peptones by:

A) both A and B

B) Trypsin

C) Pepsin

D) Erypsin

12 / 20

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

A) Rise in temperature

B) Competitive inhibition

C) Lack of substrate

D) Accumulation of end product

13 / 20

13. Sucrase (invertase) acts on:

A) Any organic Monomer

B) Any disaccharide

C) Sucrose and starch

D) Sucrose

14 / 20

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

A) Apoenzyme

B) Kinases

C) Dehydrogenases

D) Isozyme

15 / 20

15. A group of enzymes called hydrolases acts upon:

A) Proteins

B) Carbohydrate

C) All of these

D) Lipids

16 / 20

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

A) Down

B) Up

C) Down then up

D) Up then down

17 / 20

17. Enzyme groups recognized by IUB:

A) 8

B) 2

C) 4

D) 6

18 / 20

18. A metabolic pathway is a:

A) Route taken by a single particular enzyme

B) Routes taken by all enzymes in a specific medium

C) Sequence of enzyme controlled reactions

D) Route taken by chemicals through a solution

19 / 20

19. Which one is hydrolase?

A) All of these

B) Enolase

C) Polymerase

D) Amylase

20 / 20

20. Active enzymes present in:

A) Viruses

B) Prions

C) Viroids

D) Mycoplasma

Your score is

Biology Chapter Enzymes MCQs With Answers

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