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Chemistry of Life

Total questions: 20

Worksheet time: 17mins

Name
Class
Date
1.

Which macromolecule is used as our main source of energy?

a)

Lipids/Fats

b)

Nucleic Acids

c)

Proteins

d)

Carbohydrates

2.

Nucleic acids make up which of the two molecules listed below?

a)

FDA

b)

RNA

c)

DNA

d)

FDR

3.

Match the following MONOMERS and MACROMOLECULES

a)
1.

Nucleic Acid

b)
2.

Protein

c)
3.

Lipid

d)
4.

Carbohydrate

4.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
5.

Which of the following is not one of the four major classes of macromolecules?

a)

Lipids

b)

Carbon

c)

Protein

d)

Carbohydrates

e)

Nucleic Acid

6.

This macromolecule breaks down into sugars such as glucose.

a)

Lipids/Fats

b)

Nucleic Acids

c)

Protein

d)

Carbohydrates

7.
The diagram shows the general structure of an amino acid. Which type of molecule is formed from amino acids?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
8.

What is the function of nucleic acids?

a)

Short Term Energy

b)

Storing Genetic Information

c)

Long Term Energy

d)

Speeding Up Chemical Reactions

9.

What element if the building block of life?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

10.
Glycerol and fatty acids combine to form...?
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
11.
Which subunits make up the structure of all proteins?
a)
glucose
b)
amino acids
c)
carbohydrates
d)
fatty acids
12.
Which is a Carbohydrate's monomer?
a)
Sugar
b)
Amino acids
c)
Monosacharide
d)
Nucleotide
13.
Carbon, Hydrogen, Oxygen and Nitrogen are elements in what biomolecule?
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic acid
14.

Match the following Properties of Water

a)

water molecules attracted to water molecules

1.

cohesion

b)

solutions that are dissolved in water

2.

universal solvent

c)

water molceules attracted to other materials

3.

adhesion

d)

ice is

4.

less dense

e)

waters ability to retain heat

5.

high heat capacity

15.

Water molecules are able to create tension between other molecules because of...

a)

surface tension

b)

hydrogen bonding

c)

covalent bonding

d)

ionic bonding

16.

Water molecules stick together forming a "skin" on water known as ______ _________ allowing light objects to float.

a)

hydrogen bonding

b)

opposites attract

c)

surface tension

d)

polar molecule

17.
The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.
a)
adhesion
b)
capillary action
c)
cohesion
d)
surface tension
18.
Atoms gain lose, gain, or ______electrons to get a stable outer energy level.
a)
share
b)
split
c)
create
d)
destroy
19.
Valence electrons are the...
a)
Innermost electrons
b)
Middle electrons
c)
Outermost electrons
d)
Any electrons
20.

This atom will

a)

lose 1 electron

b)

gain 1 electron

c)

lose 7 electrons

d)

gain 7 electrons

e)

do nothing

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