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

6250

ENZYMES

1 / 20

1. Co-enzyme is often a:

A) Protein

B) Lipid

C) Vitamin

D) Inorganic ion

2 / 20

2. A complete enzyme is:

A) Coenzyme

B) Cofactor only

C) Apoenzyme

D) Holoenzyme

3 / 20

3. Active site of enzyme is produced by:

A) Both a and b

B) Charges

C) Fibrous structure

D) Globular structure

4 / 20

4. Protein into peptones by:

A) Pepsin

B) Erypsin

C) both A and B

D) Trypsin

5 / 20

5. A group of enzymes called hydrolases acts upon:

A) Lipids

B) All of these

C) Proteins

D) Carbohydrate

6 / 20

6. Active enzymes present in:

A) Prions

B) Viruses

C) Viroids

D) Mycoplasma

7 / 20

7. A metabolic pathway is a:

A) Routes taken by all enzymes in a specific medium

B) Sequence of enzyme controlled reactions

C) Route taken by chemicals through a solution

D) Route taken by a single particular enzyme

8 / 20

8. Co-enzyme is often formed from:

A) Lipid

B) Protein

C) Vitamin

D) Inorganic ion

9 / 20

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

A) Activation

B) Oxidation

C) Enthalpy

D) Entropy

10 / 20

10. An enzyme at below 5° C is:

A) Activated

B) Un-activated

C) Denatured

D) Destroyed

11 / 20

11. Enzyme study is:

A) in vivo possible

B) invitro possible

C) impossible

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

12 / 20

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

A) Competitive inhibition

B) Feedback Inhibition

C) Non- competitive inhibition

D) Irreversible inhibition

13 / 20

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

A) Amylase

B) Protease

C) Lipase

D) Diastase

14 / 20

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

A) Isozyme

B) Apoenzyme

C) Kinases

D) Dehydrogenases

15 / 20

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

A) Accumulation of end product

B) Competitive inhibition

C) Lack of substrate

D) Rise in temperature

16 / 20

16. Starch is converted into maltose by:

A) Invertase

B) Diastase

C) Hydrozenase

D) Maltase

17 / 20

17. Enzyme groups recognized by IUB:

A) 4

B) 2

C) 6

D) 8

18 / 20

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

A) Up

B) Up then down

C) Down

D) Down then up

19 / 20

19. Sucrase (invertase) acts on:

A) Any disaccharide

B) Sucrose and starch

C) Sucrose

D) Any organic Monomer

20 / 20

20. Which one is hydrolase?

A) Enolase

B) Amylase

C) Polymerase

D) All of these

Your score is

Biology Chapter Enzymes MCQs With Answers

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