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

6300

ENZYMES

1 / 20

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

A) Amylase

B) Lipase

C) Diastase

D) Protease

2 / 20

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

A) Competitive inhibition

B) Accumulation of end product

C) Lack of substrate

D) Rise in temperature

3 / 20

3. Starch is converted into maltose by:

A) Maltase

B) Hydrozenase

C) Diastase

D) Invertase

4 / 20

4. A metabolic pathway is a:

A) Sequence of enzyme controlled reactions

B) Route taken by a single particular enzyme

C) Routes taken by all enzymes in a specific medium

D) Route taken by chemicals through a solution

5 / 20

5. Co-enzyme is often formed from:

A) Inorganic ion

B) Vitamin

C) Protein

D) Lipid

6 / 20

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

A) Competitive inhibition

B) Feedback Inhibition

C) Non- competitive inhibition

D) Irreversible inhibition

7 / 20

7. Active site of enzyme is produced by:

A) Fibrous structure

B) Globular structure

C) Both a and b

D) Charges

8 / 20

8. Protein into peptones by:

A) Erypsin

B) both A and B

C) Trypsin

D) Pepsin

9 / 20

9. An enzyme at below 5° C is:

A) Activated

B) Denatured

C) Destroyed

D) Un-activated

10 / 20

10. Sucrase (invertase) acts on:

A) Sucrose and starch

B) Any organic Monomer

C) Sucrose

D) Any disaccharide

11 / 20

11. Enzyme groups recognized by IUB:

A) 4

B) 6

C) 8

D) 2

12 / 20

12. A group of enzymes called hydrolases acts upon:

A) Lipids

B) Carbohydrate

C) All of these

D) Proteins

13 / 20

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

A) Apoenzyme

B) Kinases

C) Isozyme

D) Dehydrogenases

14 / 20

14. Active enzymes present in:

A) Prions

B) Mycoplasma

C) Viruses

D) Viroids

15 / 20

15. A complete enzyme is:

A) Cofactor only

B) Holoenzyme

C) Apoenzyme

D) Coenzyme

16 / 20

16. Co-enzyme is often a:

A) Inorganic ion

B) Protein

C) Lipid

D) Vitamin

17 / 20

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

A) Activation

B) Entropy

C) Oxidation

D) Enthalpy

18 / 20

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

A) Down then up

B) Down

C) Up then down

D) Up

19 / 20

19. Which one is hydrolase?

A) All of these

B) Polymerase

C) Enolase

D) Amylase

20 / 20

20. Enzyme study is:

A) impossible

B) invitro possible

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

D) in vivo possible

Your score is

Biology Chapter Enzymes MCQs With Answers

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