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

6027

ENZYMES

1 / 20

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

A) Dehydrogenases

B) Apoenzyme

C) Kinases

D) Isozyme

2 / 20

2. Co-enzyme is often formed from:

A) Protein

B) Inorganic ion

C) Lipid

D) Vitamin

3 / 20

3. A metabolic pathway is a:

A) Routes taken by all enzymes in a specific medium

B) Route taken by a single particular enzyme

C) Sequence of enzyme controlled reactions

D) Route taken by chemicals through a solution

4 / 20

4. Co-enzyme is often a:

A) Inorganic ion

B) Vitamin

C) Lipid

D) Protein

5 / 20

5. A group of enzymes called hydrolases acts upon:

A) Lipids

B) All of these

C) Proteins

D) Carbohydrate

6 / 20

6. Enzyme study is:

A) invitro possible

B) impossible

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

D) in vivo possible

7 / 20

7. Active enzymes present in:

A) Viroids

B) Prions

C) Viruses

D) Mycoplasma

8 / 20

8. Protein into peptones by:

A) both A and B

B) Erypsin

C) Trypsin

D) Pepsin

9 / 20

9. A complete enzyme is:

A) Holoenzyme

B) Coenzyme

C) Apoenzyme

D) Cofactor only

10 / 20

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

A) Lack of substrate

B) Accumulation of end product

C) Rise in temperature

D) Competitive inhibition

11 / 20

11. An enzyme at below 5° C is:

A) Destroyed

B) Un-activated

C) Denatured

D) Activated

12 / 20

12. Which one is hydrolase?

A) Polymerase

B) Enolase

C) Amylase

D) All of these

13 / 20

13. Sucrase (invertase) acts on:

A) Sucrose

B) Any disaccharide

C) Sucrose and starch

D) Any organic Monomer

14 / 20

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

A) Irreversible inhibition

B) Feedback Inhibition

C) Non- competitive inhibition

D) Competitive inhibition

15 / 20

15. Enzyme groups recognized by IUB:

A) 8

B) 4

C) 6

D) 2

16 / 20

16. Active site of enzyme is produced by:

A) Fibrous structure

B) Both a and b

C) Charges

D) Globular structure

17 / 20

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

A) Oxidation

B) Enthalpy

C) Activation

D) Entropy

18 / 20

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

A) Protease

B) Amylase

C) Diastase

D) Lipase

19 / 20

19. Starch is converted into maltose by:

A) Invertase

B) Diastase

C) Maltase

D) Hydrozenase

20 / 20

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

A) Down then up

B) Up

C) Up then down

D) Down

Your score is

Biology Chapter Enzymes MCQs With Answers

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