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Enzymes

Total questions: 11

Worksheet time: 11mins

Name
Class
Date
1.

What is the main function of an enzyme?

a)

provides feedback in the biochemical process

b)

produces ATP for the cells to use

c)

accelerates the rate of a reaction

d)

none of the above

2.

TRUE or FALSE: An enzyme regenerates but it does not go back to its original form at the end of the reaction.

a)

TRUE

b)

FALSE

3.

TRUE or FALSE: An enzyme is efficient under mild conditions.

a)

TRUE

b)

FALSE

4.

Cite 3 of the major characteristics of an enzyme

4 lines
5.

TRUE or FALSE: Enzymes are found within and outside of the cell

a)

TRUE

b)

FALSE

6.

By how much can an enzyme accelerate the rate of a reaction? _________ to ___________ times.

(a)  

7.

Select all that are MAIN components of an enzyme

a)

Holoenzyme

b)

Substrate

c)

Allosteric site

d)

Metalloenzyme

e)

Co-factor

8.

What is NOT a major class of enzyme?

a)

Ligase

b)

Lyase

c)

Isomerase

d)

Geleyase

e)

Oxidoreductase

9.

What is the function of a hydrolase?

a)

transfers hydrogen and oxygen atoms or electrons from one substrate to another

b)

facilitates the non-hydrolitic removal of a group

c)

breaks bonds with the aid of water

d)

facilitates the joining of two molecules with bond formation using energy from ATP hydrolysis

10.

Which of the two free energy changes is energetically unfavorable?

a)

Negative (-delta G)

b)

Positive (+delta G)

11.

TRUE or FALSE: Determines the spontaneity and speed of the reaction

a)

TRUE

b)

FALSE