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Enzymes and Mammalian teeth

Total questions: 32

Worksheet time: 24mins

Name
Class
Date
1.

1) What is the part of the tooth you can see above the gum?

a)

(a)Crown

b)

(b) Pulp

c)

(c) Cavity

2.

Which type of tooth is the picture representing?

a)

(a)Premolar

b)

(b) Molar

c)

(c) Canine

3.

An adult has ___ teeth.

a)

42

b)

32

c)

22

4.

This skull is possessed by a_______

a)

herbivore

b)

carnivore

c)

omnivore

5.

What feeding level belongs to this teeth?

a)

herbivore

b)

carnivore

c)

omnivore

d)

none of the above

6.

The pulp at your teeth contains ______, which send messages to the brain if your ice pop is too cold.

a)

blood vessels

b)

nerves

c)

brain waves

d)

none of the above

7.

This type of tooth is pointy, sharp, and made to help tear food.

a)

molars

b)

incisors

c)

canines

d)

pre molars

8.

What tooth is this?

a)

molar

b)

incisors

c)

canine

d)

premolar

9.

Identify the part of the tooth labelled A.

a)

Dentine

b)

Pulp

c)

Enamel

d)

Root

10.

The first set of teeth are called as

a)

Milk Teeth

b)

Temporary Teeth

c)

Baby Teeth

d)

All of the above

11.

The tooth receives nourishment from

a)

Enamel

b)

Dentine

c)

Pulp

d)

None of the above

12.

Type of protein that SPEEDS UP metabolic reactions in plants and animals without being permanently changed or destroyed

a)

The reactant

b)

Glucose

c)

Enzyme

d)

ATP

13.

The substance which an enzyme act on is known as ___

a)

product

b)

substrate

c)

activation energy

d)

active site

14.

Most enzymes -

a)

have no effect on the rate of the chemical reaction

b)

speed up the chemical reaction

c)

slow the rate of the chemical reaction

d)

keep the rate of the chemical reaction the same

15.

Refer to the figure above. What temperature would be considered the optimum temperature for this enzyme's activity rate?

a)

20 Degrees Celsius

b)

60 Degrees Celsius

c)

40 Degrees Celsius

d)

30 Degrees Celsius

16.

What suffix is used in the names of most enzymes?

a)

-nic

b)

-ase

c)

-gen

d)

-yme

17.

Enzymes only work with specific substrates because each substrate -

a)

actively interferes with other substrates around it

b)

destroys its specific enzyme

c)

can only use a specific ionic bond with the enzyme

d)

has a specific activation site for enzyme attachment

18.

What two factors can denature enzymes?

a)

pH & temperature

b)

temperature & concentration

c)

temperature & amount of substrate

d)

temperature & malleability

19.

Which of the following is an enzyme?

a)

lipase

b)

lactose

c)

galactose

d)

glucose

20.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
21.
Each enzyme only has 1 substrate that will fit its active site.  What is this called?
a)
reusablility
b)
denaturation
c)
specificity
d)
fragility
22.
In the diagram, what is letter A? 
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
23.
Enzymes are...
a)
nucleic acids
b)
proteins
c)
lipids
d)
carbohydrates
24.
An enzyme speeds up a chemical reaction in the cell but can only be used once.  True or False? 
a)
true
b)
false
25.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
26.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
27.
Letter B...
a)
active site
b)
enzyme
c)
substrate
d)
products
28.
Letter C...
a)
active site
b)
enzymes
c)
substrate
d)
products
29.
Letter E...
a)
active site
b)
enzyme
c)
substrate
d)
products
30.
Which enzyme is most efficient in a basic solution?
a)
A
b)
B
31.

A toothless space meant for the mixing of food in the mouth of a herbivore is called (a)   .

32.

A special kind of teeth found in carnivores needed for tearing flesh from bones is known as the (a)