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Quiz 2 (THE PROTEIN)

Total questions: 10

Worksheet time: 15mins

Name
Class
Date
1.

What is the process when a protein uncoils or loses its shape?

a)

Dipeptide

b)

Denaturation

c)

Protease creation

d)

Absorption

2.

Proteins are susceptible to heat and acid. An example of this process in the body is during digestion, when proteins are exposed to _________________acid.

a)

dipeptide

b)

denaturation

c)

hemoglobin

d)

hydrochloric

3.

Which statement about amino acids is correct?

a)

Nonessential amino acids may become essential under certain conditions.

b)

All amino acids are essential.

c)

Essential amino acids are made in the body.

d)

The terms nonessential and conditionally essential are interchangeable.

4.

The repeating units of protein are

a)

Amino acids

b)

Glucose

c)

Fatty acid

d)

Peptides

5.

What is one of the functions of a protein?

a)

cell energy

b)

enzymes

c)

long term energy storage

d)

contain genetic information

6.

Why is folding so important in proteins?

a)

It gives them a unique, functional shape

b)

It makes them look tidier

c)

It makes every protein molecule different from the next even if they are the same type

d)

The folding is random so is not that important at all

7.

What is the role of protein in the body?

a)

Is the main source of energy for the body

b)

Helps to build and repair body tissue

c)

Provide warmth and cushioning to the body's organs

d)

Helps to transport vitamins through the body

e)

All of the above are roles of protein in the body

8.

Which of the following is good sources for proteins?


i. fish

ii. lean meats

iii. chicken breast

iv. low-fat dairy product

a)

i, ii and iii

b)

ii, iii and iv

c)

i, iii and iv

d)

i, ii, iii and iv

9.

Sickle cell anemia is caused by changes of the ______ amino acid in the β-hemoglobin chain.

a)

sixth

b)

seventh

c)

fifth

10.

What are peptides?

a)

polymer of α-amino acids

b)

polymer of β-amino acids

c)

polymer of carboxylic acids

d)

polymer of amides