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

6232

ENZYMES

1 / 20

1. Enzyme groups recognized by IUB:

A) 8

B) 4

C) 6

D) 2

2 / 20

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

A) Down then up

B) Up

C) Down

D) Up then down

3 / 20

3. Enzyme study is:

A) impossible

B) invitro possible

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

D) in vivo possible

4 / 20

4. Sucrase (invertase) acts on:

A) Sucrose

B) Any disaccharide

C) Any organic Monomer

D) Sucrose and starch

5 / 20

5. Starch is converted into maltose by:

A) Diastase

B) Maltase

C) Hydrozenase

D) Invertase

6 / 20

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

A) Feedback Inhibition

B) Irreversible inhibition

C) Non- competitive inhibition

D) Competitive inhibition

7 / 20

7. Active site of enzyme is produced by:

A) Globular structure

B) Both a and b

C) Charges

D) Fibrous structure

8 / 20

8. Active enzymes present in:

A) Mycoplasma

B) Viroids

C) Prions

D) Viruses

9 / 20

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

A) Oxidation

B) Enthalpy

C) Entropy

D) Activation

10 / 20

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

A) Competitive inhibition

B) Accumulation of end product

C) Lack of substrate

D) Rise in temperature

11 / 20

11. Co-enzyme is often formed from:

A) Protein

B) Vitamin

C) Inorganic ion

D) Lipid

12 / 20

12. A metabolic pathway is a:

A) Route taken by chemicals through a solution

B) Routes taken by all enzymes in a specific medium

C) Route taken by a single particular enzyme

D) Sequence of enzyme controlled reactions

13 / 20

13. A group of enzymes called hydrolases acts upon:

A) Lipids

B) Carbohydrate

C) Proteins

D) All of these

14 / 20

14. Which one is hydrolase?

A) Amylase

B) All of these

C) Enolase

D) Polymerase

15 / 20

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

A) Diastase

B) Protease

C) Lipase

D) Amylase

16 / 20

16. Co-enzyme is often a:

A) Protein

B) Lipid

C) Inorganic ion

D) Vitamin

17 / 20

17. Protein into peptones by:

A) Erypsin

B) Pepsin

C) Trypsin

D) both A and B

18 / 20

18. An enzyme at below 5° C is:

A) Denatured

B) Activated

C) Un-activated

D) Destroyed

19 / 20

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

A) Apoenzyme

B) Kinases

C) Isozyme

D) Dehydrogenases

20 / 20

20. A complete enzyme is:

A) Holoenzyme

B) Apoenzyme

C) Cofactor only

D) Coenzyme

Your score is

Biology Chapter Enzymes MCQs With Answers

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