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

6299

ENZYMES

1 / 20

1. Enzyme groups recognized by IUB:

A) 2

B) 4

C) 6

D) 8

2 / 20

2. Co-enzyme is often a:

A) Protein

B) Lipid

C) Vitamin

D) Inorganic ion

3 / 20

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

A) Up then down

B) Down

C) Up

D) Down then up

4 / 20

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

A) Competitive inhibition

B) Feedback Inhibition

C) Irreversible inhibition

D) Non- competitive inhibition

5 / 20

5. An enzyme at below 5° C is:

A) Activated

B) Denatured

C) Un-activated

D) Destroyed

6 / 20

6. Which one is hydrolase?

A) Polymerase

B) All of these

C) Enolase

D) Amylase

7 / 20

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

A) Lipase

B) Protease

C) Diastase

D) Amylase

8 / 20

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

A) Enthalpy

B) Oxidation

C) Entropy

D) Activation

9 / 20

9. Protein into peptones by:

A) Pepsin

B) both A and B

C) Trypsin

D) Erypsin

10 / 20

10. Co-enzyme is often formed from:

A) Vitamin

B) Inorganic ion

C) Lipid

D) Protein

11 / 20

11. Sucrase (invertase) acts on:

A) Sucrose

B) Any organic Monomer

C) Sucrose and starch

D) Any disaccharide

12 / 20

12. A group of enzymes called hydrolases acts upon:

A) Proteins

B) Lipids

C) All of these

D) Carbohydrate

13 / 20

13. Enzyme study is:

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

B) in vivo possible

C) invitro possible

D) impossible

14 / 20

14. Active enzymes present in:

A) Viroids

B) Viruses

C) Mycoplasma

D) Prions

15 / 20

15. A complete enzyme is:

A) Holoenzyme

B) Apoenzyme

C) Coenzyme

D) Cofactor only

16 / 20

16. 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

17 / 20

17. Active site of enzyme is produced by:

A) Fibrous structure

B) Globular structure

C) Both a and b

D) Charges

18 / 20

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

A) Accumulation of end product

B) Lack of substrate

C) Competitive inhibition

D) Rise in temperature

19 / 20

19. Starch is converted into maltose by:

A) Invertase

B) Diastase

C) Maltase

D) Hydrozenase

20 / 20

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

A) Isozyme

B) Dehydrogenases

C) Kinases

D) Apoenzyme

Your score is

Biology Chapter Enzymes MCQs With Answers

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