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CHE 411 module 3

Total questions: 10

Worksheet time: 2mins

Name
Class
Date
1.

Eduard Buchner discovered enzymes from __________ in 1897.

a)

A. yogurt

b)

B. yeast

c)

C. bacteria

d)

D. wheat

2.

The ________ model suggests an enzyme’s active site is pre-shaped to fit the substrate.

a)

A. Induced fit

b)

B. Lock and Key

c)

C. Allosteric

d)

D. Transition state

3.

The ________ model suggests the active site adjusts to fit the substrate upon binding.

a)

A. Lock and Key

b)

B. Conformational lock

c)

C. Induced fit

d)

D. Zymogen

4.

In the Lineweaver–Burk plot, the y-intercept represents the inverse of ________.

a)

A. Km

b)

B. Vmax

c)

C. [S]

d)

D. kcat

5.

________ enzymes consist of a single polypeptide chain.

a)

A. Oligomeric

b)

B. Monomeric

c)

C. Holoenzyme

d)

D. Isozyme

6.

________ is an example of an enzyme that operates optimally at an acidic pH.

a)

A. Trypsin

b)

B. Amylase

c)

C. Pepsin

d)

D. Urease

7.

The slope of the Lineweaver–Burk plot is equal to ________.

a)

A. 1/Vmax

b)

B. Km

c)

C. Km/Vmax

d)

D. Vmax/Km

8.

The ________ method plots [S]/v on the y-axis and [S] on the x-axis.

a)

A. Lineweaver–Burk

b)

B. Eadie–Hofstee

c)

C. Hanes–Woolf

d)

D. Dixon

9.

The ________ method gives a straight line by plotting v against v/[S].

a)

A. Eadie–Hofstee

b)

B. Hanes–Woolf

c)

C. Lineweaver–Burk

d)

D. Cornish–Bowden

10.

When plotting enzyme kinetics, the double-reciprocal plot commonly used is called the ________ plot.

a)

A. Dixon

b)

B. Hanes–Woolf

c)

C. Lineweaver–Burk

d)

D. Eadie–Hofstee