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

6296

ENZYMES

1 / 20

1. A metabolic pathway is a:

A) Route taken by chemicals through a solution

B) Routes taken by all enzymes in a specific medium

C) Sequence of enzyme controlled reactions

D) Route taken by a single particular enzyme

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) Charges

B) Fibrous structure

C) Both a and b

D) Globular structure

4 / 20

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

A) Isozyme

B) Dehydrogenases

C) Kinases

D) Apoenzyme

5 / 20

5. Protein into peptones by:

A) both A and B

B) Erypsin

C) Pepsin

D) Trypsin

6 / 20

6. Co-enzyme is often a:

A) Inorganic ion

B) Protein

C) Vitamin

D) Lipid

7 / 20

7. Co-enzyme is often formed from:

A) Inorganic ion

B) Lipid

C) Protein

D) Vitamin

8 / 20

8. A group of enzymes called hydrolases acts upon:

A) Lipids

B) All of these

C) Proteins

D) Carbohydrate

9 / 20

9. Active enzymes present in:

A) Prions

B) Viruses

C) Viroids

D) Mycoplasma

10 / 20

10. Sucrase (invertase) acts on:

A) Any organic Monomer

B) Sucrose and starch

C) Sucrose

D) Any disaccharide

11 / 20

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

A) Activation

B) Entropy

C) Oxidation

D) Enthalpy

12 / 20

12. Which one is hydrolase?

A) Polymerase

B) Enolase

C) All of these

D) Amylase

13 / 20

13. Enzyme study is:

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

B) invitro possible

C) impossible

D) in vivo possible

14 / 20

14. An enzyme at below 5° C is:

A) Un-activated

B) Denatured

C) Activated

D) Destroyed

15 / 20

15. Enzyme groups recognized by IUB:

A) 8

B) 6

C) 2

D) 4

16 / 20

16. Starch is converted into maltose by:

A) Hydrozenase

B) Maltase

C) Invertase

D) Diastase

17 / 20

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

A) Competitive inhibition

B) Irreversible inhibition

C) Feedback Inhibition

D) Non- competitive inhibition

18 / 20

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

A) Competitive inhibition

B) Rise in temperature

C) Lack of substrate

D) Accumulation of end product

19 / 20

19. 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

20 / 20

20. A complete enzyme is:

A) Holoenzyme

B) Coenzyme

C) Cofactor only

D) Apoenzyme

Your score is

Biology Chapter Enzymes MCQs With Answers

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