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

6307

ENZYMES

1 / 20

1. Co-enzyme is often formed from:

A) Vitamin

B) Protein

C) Lipid

D) Inorganic ion

2 / 20

2. Protein into peptones by:

A) Trypsin

B) Erypsin

C) both A and B

D) Pepsin

3 / 20

3. 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

4 / 20

4. Enzyme study is:

A) impossible

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

C) invitro possible

D) in vivo possible

5 / 20

5. Sucrase (invertase) acts on:

A) Any organic Monomer

B) Sucrose

C) Any disaccharide

D) Sucrose and starch

6 / 20

6. A complete enzyme is:

A) Coenzyme

B) Apoenzyme

C) Cofactor only

D) Holoenzyme

7 / 20

7. Active site of enzyme is produced by:

A) Both a and b

B) Fibrous structure

C) Globular structure

D) Charges

8 / 20

8. Starch is converted into maltose by:

A) Invertase

B) Maltase

C) Diastase

D) Hydrozenase

9 / 20

9. An enzyme at below 5° C is:

A) Destroyed

B) Activated

C) Denatured

D) Un-activated

10 / 20

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

A) Activation

B) Oxidation

C) Entropy

D) Enthalpy

11 / 20

11. Enzyme groups recognized by IUB:

A) 8

B) 4

C) 2

D) 6

12 / 20

12. Co-enzyme is often a:

A) Inorganic ion

B) Protein

C) Lipid

D) Vitamin

13 / 20

13. A group of enzymes called hydrolases acts upon:

A) All of these

B) Carbohydrate

C) Proteins

D) Lipids

14 / 20

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

A) Up

B) Down

C) Down then up

D) Up then down

15 / 20

15. Active enzymes present in:

A) Mycoplasma

B) Prions

C) Viroids

D) Viruses

16 / 20

16. Which one is hydrolase?

A) Polymerase

B) Enolase

C) Amylase

D) All of these

17 / 20

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

A) Lipase

B) Diastase

C) Amylase

D) Protease

18 / 20

18. A metabolic pathway is a:

A) Sequence of enzyme controlled reactions

B) Route taken by chemicals through a solution

C) Routes taken by all enzymes in a specific medium

D) Route taken by a single particular enzyme

19 / 20

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

A) Irreversible inhibition

B) Competitive inhibition

C) Feedback Inhibition

D) Non- competitive inhibition

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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