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

6272

ENZYMES

1 / 20

1. 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

2 / 20

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

A) Irreversible inhibition

B) Non- competitive inhibition

C) Feedback Inhibition

D) Competitive inhibition

3 / 20

3. Active site of enzyme is produced by:

A) Globular structure

B) Both a and b

C) Fibrous structure

D) Charges

4 / 20

4. A metabolic pathway is a:

A) Route taken by a single particular enzyme

B) Sequence of enzyme controlled reactions

C) Route taken by chemicals through a solution

D) Routes taken by all enzymes in a specific medium

5 / 20

5. Enzyme study is:

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

B) in vivo possible

C) invitro possible

D) impossible

6 / 20

6. Co-enzyme is often a:

A) Inorganic ion

B) Protein

C) Vitamin

D) Lipid

7 / 20

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

A) Lipase

B) Amylase

C) Protease

D) Diastase

8 / 20

8. Starch is converted into maltose by:

A) Invertase

B) Diastase

C) Hydrozenase

D) Maltase

9 / 20

9. Co-enzyme is often formed from:

A) Lipid

B) Inorganic ion

C) Protein

D) Vitamin

10 / 20

10. An enzyme at below 5° C is:

A) Un-activated

B) Destroyed

C) Denatured

D) Activated

11 / 20

11. Protein into peptones by:

A) Trypsin

B) Erypsin

C) both A and B

D) Pepsin

12 / 20

12. Enzyme groups recognized by IUB:

A) 8

B) 4

C) 6

D) 2

13 / 20

13. Which one is hydrolase?

A) Amylase

B) Enolase

C) Polymerase

D) All of these

14 / 20

14. A complete enzyme is:

A) Cofactor only

B) Coenzyme

C) Holoenzyme

D) Apoenzyme

15 / 20

15. Sucrase (invertase) acts on:

A) Any organic Monomer

B) Any disaccharide

C) Sucrose

D) Sucrose and starch

16 / 20

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

A) Accumulation of end product

B) Competitive inhibition

C) Lack of substrate

D) Rise in temperature

17 / 20

17. Active enzymes present in:

A) Mycoplasma

B) Viruses

C) Viroids

D) Prions

18 / 20

18. A group of enzymes called hydrolases acts upon:

A) All of these

B) Carbohydrate

C) Proteins

D) Lipids

19 / 20

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

A) Enthalpy

B) Activation

C) Entropy

D) Oxidation

20 / 20

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

A) Dehydrogenases

B) Isozyme

C) Apoenzyme

D) Kinases

Your score is

Biology Chapter Enzymes MCQs With Answers

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