CHAPTER 4: BIOCATALYSIS

CHAPTER 4: BIOCATALYSIS

University

10 Qs

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CHAPTER 4: BIOCATALYSIS

CHAPTER 4: BIOCATALYSIS

Assessment

Quiz

Biology

University

Practice Problem

Medium

Created by

GENEVIE Moe

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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

What is the function of hydrolase?

Catalyse the transfer of functional group from one substrate to the another

Catalyse the formation of functional group by adding the chemical group

Catalyse the breakdown of chemical bond by adding water molecules

Catalyse the addition or removal of a chemical group to substrate

2.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Which of the following statements is NOT the property of an enzyme?

It is reusable

Posses active site

Enzyme is a fibrous protein

Only a small amount is needed to bring about of large amount of substrates

3.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Substrate bind to enzymes at the

Active site

Allosteric site

Regulatory site

Substrate-enzyme complex

4.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

When the pH value is above or below optimum pH, the enzymatic activity will

increase

decrease

immediately stop

remain unchanged

5.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Zinc is an essential trace element. It is part of the active site for the enzyme carboxypeptidase. Which of the following is the function of zinc?

As a non-competitive inhibitor of the enzyme

As a cofactor necessary for enzyme activity

As an allosteric activator of the enzyme

As a coenzyme derived from vitamin

6.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

A cofactor is essential to enzyme as it is able to

increase the concentration of substrate

decrease the effect of extreme pH and temperature to enzyme

bind and change enzyme’s active site to become complement with substrate

bind tightly to enzyme’s active site to protect the enzyme from damaged

7.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Enzymes that do not have cofactors known as

Holoenzymes

Apoenzymes

Protoenzymes

Proenzymes

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