wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Proteins and Nucleic Acids (H)

Total questions: 25

Worksheet time: 23mins

Name
Class
Date
1.

Polar molecules are ________ in water

a)

Soluble

b)

Insoluble

2.

Which reaction occurs when proteins are degraded by an enzyme into amino acids?

a)

dehydration synthesis

b)

hydrolysis

3.

The interaction between these determine the structure and function of a protein

a)

amino acid backbone

b)

R groups (side chains)

c)

Hydrogen bonding sites

d)

nucleotides

4.

What is the force that holds the 2 strands of DNA together?

a)

hydrophobic interactions

b)

salt bridges

c)

hydrogen bonding

d)

disulfide bonds

5.

The diagram shows a bond forming between two amino acids. What is the name of this reaction?

a)

Dehydration Synthesis

b)

Hydrolysis

c)

Pepysis

d)

Oxidation

6.

How many water molecules are made if you connect 20 amino acids together?

a)

0

b)

10

c)

19

d)

20

7.
What is the monomer of proteins?
a)
monosaccharides
b)
amino acids
c)
phospholipids
d)
nucleotide
8.
Which of the macromolecules contain nitrogen?
a)
proteins only
b)
nucleic acids only
c)
proteins and lipids
d)
nucleic acids and proteins
9.
How are the subunits of proteins linked together?
a)
ionic bonds
b)
amino acids
c)
monomers
d)
peptide bonds
10.
The image depicts which level of structure in proteins?
a)
primary
b)
secondary
c)
tertiary
d)
quaternary
11.

The process by which protein conformation is lost or broken down is

a)

dehydration synthesis

b)

translation

c)

denaturation

d)

hydrolysis

12.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
13.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
14.
RNA contains the sugar
a)
ribose
b)
deoxyribose
c)
glucose
d)
lactose
15.
Which of the following statements is true?
a)
DNA is single-stranded
b)
RNA is single-stranded
c)
DNA contains uracil
d)
RNA contains deoxyribose
16.
What is the difference between DNA and RNA in terms of bases?
a)
RNA contains uracil in place of thymine
b)
RNA contains uracil in place of adenine
c)
RNA contains uracil in place of guanine
d)
RNA contains uracil in place of  cytosine
17.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
18.

what nucleotides are purines?

a)
Thymine and cytosine
b)
Adenine and thymine
c)
Uracil and cytosine
d)
Adenine and guanine
19.

what nucleotides are pyrimidines?

a)

Cytosine, Thymine, and Uracil

b)

Adenine, Guanine, and Thymine

c)

Adenine, Guanine, and Uracil

d)

Adenine, Cytosine, and Guanine

20.

Organize these options into the right categories

Categorize the following

purine
pyrimidine
DNA
NOT DNA
21.

Nucleic acids are mad up of nucleotide. What is the structure of a nucleotide?

(hint: look for a 5-Carbon Sugar Molecule)

a)
b)
c)
d)
22.

Which protein structure involves the peptide bonds between amino acids?

a)

primary

b)

secondary

c)

tertiary

d)

quaternary

23.

DNA and RNA differ on many qualities, which of the following is NOT a difference?

a)

Sugar

b)

Nitrogenous Base

c)

Phosphate Group

d)

Strandedness

24.

Which word means that an enzyme has lost its shape?

a)

digestion

b)

synthesis

c)

catalyze

d)

denature

25.
In RNA, Uracil pairs with ______. 
a)
cytosine
b)
adenine
c)
guanine
d)
thymine