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Biological molecules

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.
What are the four biological molecules?
a)
proteins, carbohydrates, lipids, nucleic acids
b)
A, T, C, G
c)
water, air, earth, and fire
d)

oxygen, water, carbon, nitrogen

2.

What does organic mean (in chemistry)?

a)

It costs more at the grocery store

b)

It contains carbon and hydrogen

c)

It is made of many individual parts

d)

It produces energy

3.

What is the monomer that makes up carbohydrates?

a)

Monosaccarides

b)

Fatty Acids

c)

Amino Acids

d)

Nucleotides

4.

What are triglycerides made of?

a)

Monosaccarides

b)

Fatty Acids

c)

Amino Acids

d)

Nucleotides

5.

What is the monomer that makes up proteins?

a)

Monosaccarides

b)

Fatty Acids

c)

Amino Acids

d)

Nucleotides

6.

What is the monomer that make up nucleic acids?

a)

Monosaccarides

b)

Fatty Acids

c)

Amino Acids

d)

Nucleotides

7.
Amino acids all have the same general structure except for the:
a)
Amino Group
b)
Carboxyl Group
c)
'R' Group
d)
Carbonyl Group
8.

Cellulose, starch and glycogen are examples of:

a)

monosaccharides

b)

disaccharides

c)

lipids

d)

polysaccharides

9.

What is the following molecule?

a)

triglyceride

b)

phospholipid

c)

steroid

d)

protein

10.

What is the following molecule?

a)

alpha glcuose

b)

beta glucose

c)

amino acid

d)

disaccharide

11.

What is the following molecule?

a)

glucose

b)

DNA

c)

amino acid

d)

disaccharide

12.

Which protein structure describes the sequence of amino acids?

a)

Primary structure

b)

Secondary structure

c)

Tertiary structure

d)

Quaternary structure

13.

Which of the following describes the secondary structure of proteins?

a)

The sequence of amino acids

b)

The α-helix and β-pleated sheet folding

c)

The folding of the polypeptide chain due to the 'R' groups

d)

The joining of different protein molecules to make one big molecule

14.

Which protein structure describes a protein's three-dimensional shape?

a)

Primary structure

b)

Secondary structure

c)

Tertiary structure

d)

Quaternary structure

15.

Haemoglobin is a quaternary protein because:

a)

It has more than one peptide bonds

b)

Its shape is globular

c)

It consists of more than one polypeptide chains

d)

It has iron in each heme group