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ENZYME NOMENCLATURE

Total soal: 10

Worksheet time: 5mins

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Kelas
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1.

What is the main enzyme classification system based on?

a)

Structural features

b)

Chemical properties

c)

Functionality

d)

Enzyme Commission (EC) number

2.

What does the EC number indicate about an enzyme?

a)

a. Its substrate

b)

b. Its cofactor

c)

c. Its catalytic mechanism

d)

d. Its catalytic reaction

3.

What is the first part of an enzyme’s name?

a)

a. Species name

b)

b. Gene name

c)

c. EC number

d)

d. Systematic name

4.

How are enzymes named under the EC number system?

a)

a. Based on the species in which it was discovered

b)

b. Based on the substrate it acts on

c)

c. Based on the reaction it catalyzes

d)

d. Based on its gene name

5.

What is the format for an EC number?

a)

a. EC n.n.n.n

b)

b. EC nn.n

c)

c. EC nnn

d)

d. EC nn.nn

6.

What does the first digit of an EC number indicate?

a)

a. Enzyme class

b)

b. Enzyme sub-class

c)

c. Enzyme type

d)

d. Enzyme category

7.

What does the second digit of an EC number indicate?

a)

a. Enzyme class

b)

b. Enzyme sub-class

c)

c. Enzyme type

d)

d. Enzyme category

8.

What does the third digit of an EC number indicate?

a)

a. Enzyme class

b)

b. Enzyme sub-class

c)

c. Enzyme type

d)

d. Enzyme category

9.

What does the fourth digit of an EC number indicate?

a)

a. Enzyme class

b)

b. Enzyme sub-class

c)

c. Enzyme type

d)

d. Enzyme category

10.

How many enzyme classes are there under the EC number system?

a)

a. 4

b)

b. 5

c)

c. 6

d)

d. 7