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

6290

ENZYMES

1 / 20

1. Protein into peptones by:

A) Erypsin

B) both A and B

C) Pepsin

D) Trypsin

2 / 20

2. Co-enzyme is often a:

A) Inorganic ion

B) Vitamin

C) Lipid

D) Protein

3 / 20

3. 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

4 / 20

4. A complete enzyme is:

A) Cofactor only

B) Holoenzyme

C) Apoenzyme

D) Coenzyme

5 / 20

5. Enzyme groups recognized by IUB:

A) 2

B) 4

C) 6

D) 8

6 / 20

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

A) Apoenzyme

B) Kinases

C) Isozyme

D) Dehydrogenases

7 / 20

7. Starch is converted into maltose by:

A) Hydrozenase

B) Diastase

C) Maltase

D) Invertase

8 / 20

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

A) Protease

B) Lipase

C) Diastase

D) Amylase

9 / 20

9. Co-enzyme is often formed from:

A) Lipid

B) Protein

C) Inorganic ion

D) Vitamin

10 / 20

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

A) Activation

B) Entropy

C) Oxidation

D) Enthalpy

11 / 20

11. Sucrase (invertase) acts on:

A) Sucrose

B) Any disaccharide

C) Any organic Monomer

D) Sucrose and starch

12 / 20

12. An enzyme at below 5° C is:

A) Activated

B) Un-activated

C) Denatured

D) Destroyed

13 / 20

13. A group of enzymes called hydrolases acts upon:

A) Lipids

B) Proteins

C) Carbohydrate

D) All of these

14 / 20

14. Active enzymes present in:

A) Viruses

B) Mycoplasma

C) Prions

D) Viroids

15 / 20

15. Which one is hydrolase?

A) Polymerase

B) Enolase

C) Amylase

D) All of these

16 / 20

16. Active site of enzyme is produced by:

A) Globular structure

B) Fibrous structure

C) Charges

D) Both a and b

17 / 20

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

A) Competitive inhibition

B) Lack of substrate

C) Accumulation of end product

D) Rise in temperature

18 / 20

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

A) Up then down

B) Up

C) Down then up

D) Down

19 / 20

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

A) Feedback Inhibition

B) Non- competitive inhibition

C) Competitive inhibition

D) Irreversible inhibition

20 / 20

20. Enzyme study is:

A) in vivo possible

B) impossible

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

D) invitro possible

Your score is

Biology Chapter Enzymes MCQs With Answers

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