Chapter 1:
The Chemistry of Life
Practice Test
1.
What type of molecule is made up of atoms from more than one type of element?
a.
an element
b.
a compound
c.
an atom
d.
hydrogen gas
Hint
2.
The primary functions of lipids are long-term storage of energy and ___________________ .
a.
building of parts of the cell membrane
b.
providing energy quickly
c.
making amino acids
d.
sending and receiving messages
Hint
3.
What is the law that states that matter is neither created nor destroyed?
a.
law of conservation of matter
b.
law of gravity
c.
law of thermodynamics
d.
Dalton's law
Hint
4.
What is a subatomic particle with no electric charge?
a.
proton
b.
neutron
c.
electron
d.
nucleus
Hint
5.
What is made up of a sugar called deoxyribose, a nitrogen-containing base, and a phosphate group?
a.
RNA
b.
a disaccharide
c.
DNA
d.
a lipid
Hint
6.
What are covalent bonds that form between amino acids?
a.
hydrogen bonds
b.
ionic bonds
c.
chain bonds
d.
peptide bonds
Hint
7.
Several glucose molecules may bond to form complex carbohydrates called _________ .
a.
phosphate groups
b.
polysaccharides
c.
disaccharides
d.
monosaccharides
Hint
8.
What are substances that cannot be broken down chemically into simpler substances?
a.
carbon dioxide
b.
elements
c.
ozone
d.
molecules
Hint
9.
What is the attraction, sharing, or transfer of outer shell electrons from one atom to another?
a.
chemical bond
b.
cells
c.
chemical reaction
d.
activation energy
Hint
10.
What are structural components of cells as well as messengers and receptors between cells?
a.
proteins
b.
fats
c.
carbohydrates
d.
lipids
Hint
