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

6250

ENZYMES

1 / 20

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

A) Up

B) Up then down

C) Down

D) Down then up

2 / 20

2. Active enzymes present in:

A) Viruses

B) Viroids

C) Mycoplasma

D) Prions

3 / 20

3. Sucrase (invertase) acts on:

A) Sucrose

B) Any disaccharide

C) Sucrose and starch

D) Any organic Monomer

4 / 20

4. An enzyme at below 5° C is:

A) Destroyed

B) Activated

C) Un-activated

D) Denatured

5 / 20

5. A group of enzymes called hydrolases acts upon:

A) Lipids

B) Proteins

C) All of these

D) Carbohydrate

6 / 20

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

A) Non- competitive inhibition

B) Feedback Inhibition

C) Irreversible inhibition

D) Competitive inhibition

7 / 20

7. A complete enzyme is:

A) Coenzyme

B) Holoenzyme

C) Apoenzyme

D) Cofactor only

8 / 20

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

A) Protease

B) Amylase

C) Lipase

D) Diastase

9 / 20

9. A metabolic pathway is a:

A) Route taken by a single particular enzyme

B) Route taken by chemicals through a solution

C) Routes taken by all enzymes in a specific medium

D) Sequence of enzyme controlled reactions

10 / 20

10. Enzyme study is:

A) invitro possible

B) in vivo possible

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

D) impossible

11 / 20

11. Which one is hydrolase?

A) Amylase

B) Polymerase

C) Enolase

D) All of these

12 / 20

12. Co-enzyme is often formed from:

A) Lipid

B) Protein

C) Inorganic ion

D) Vitamin

13 / 20

13. Starch is converted into maltose by:

A) Invertase

B) Hydrozenase

C) Diastase

D) Maltase

14 / 20

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

A) Lack of substrate

B) Accumulation of end product

C) Competitive inhibition

D) Rise in temperature

15 / 20

15. Active site of enzyme is produced by:

A) Fibrous structure

B) Both a and b

C) Globular structure

D) Charges

16 / 20

16. Protein into peptones by:

A) Pepsin

B) Erypsin

C) Trypsin

D) both A and B

17 / 20

17. Co-enzyme is often a:

A) Lipid

B) Inorganic ion

C) Protein

D) Vitamin

18 / 20

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

A) Dehydrogenases

B) Kinases

C) Apoenzyme

D) Isozyme

19 / 20

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

A) Activation

B) Oxidation

C) Enthalpy

D) Entropy

20 / 20

20. Enzyme groups recognized by IUB:

A) 2

B) 8

C) 6

D) 4

Your score is

Biology Chapter Enzymes MCQs With Answers

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