Deck 2: Chemistry of Life

Question 1

The atomic weight is equal to the sum of

A)neutrons.
B)protons and neutrons.
C)neutrons and electrons.
D)electrons.

Answer 1

B

Question 2

Sucrose is composed of

A)glucose and galactose.
B)glucose and fructose.
C)fructose and maltose.
D)glucose and maltose.

Answer 2

B

Question 3

The RNA nucleotide base that pairs with adenine of DNA is

A)cytosine.
B)guanine.
C)thymine.
D)uracil.

Answer 3

D

Question 4

Cytosine always undergoes complementary base pairing with

A)adenine.
B)guanine.
C)thymine.
D)uracil.

Question 5

The smallest units of matter are

A)molecules.
B)atoms.
C)protons.
D)compounds.

Question 6

Starch is an example of a

A)monosaccharide.
B)polysaccharide.
C)peptide.
D)protein.

Question 7

Protons are

A)located in the shells.
B)part of the atomic nucleus.
C)negatively charged.
D)uncharged particles.

Question 8

Two glucose molecules form

A)galactose.
B)lactose.
C)maltose.
D)fructose.

Question 9

The isotope deuterium has

A)one proton.
B)one proton and one neutron.
C)one proton and two neutrons.
D)one proton and three neutrons.

Question 10

The bond between sodium and chlorine atoms in sodium chloride is a(n)

A)hydrogen bond.
B)ionic bond.
C)polar covalent bond.
D)nonpolar covalent bond.

Question 11

The bond of oxygen and hydrogen between water molecules is a(n)

A)ionic bond.
B)polar covalent bond.
C)nonpolar covalent bond.
D)hydrogen bond.

Question 12

After filling the first shell,the outermost shell of an atom can hold up to __________ electrons.

A)2
B)6
C)8
D)10

Question 13

Glucose and fructose are examples of

A)monosaccharides.
B)disaccharides.
C)polysaccharides.
D)lipids.

Question 14

The bond between amino acids is a(n)

A)ionic bond.
B)peptide bond.
C)hydrogen bond.
D)covalent bond.

Question 15

The transfer of electrons in a chemical bond represents a(n)

A)ionic bond.
B)polar covalent bond.
C)nonpolar covalent bond.
D)hydrogen bond.

Question 16

Particles of an atom located in the outermost shell and available for chemical bonding are called

A)valence electrons.
B)isotopes.
C)excess electrons.
D)neutrons.

Question 17

The atomic number equals the number of

A)protons.
B)neutrons.
C)electrons.
D)protons and neutrons.

Question 18

A chemical bond in which electrons are equally shared is a(n)

A)ionic bond.
B)polar covalent bond.
C)nonpolar covalent bond.
D)hydrogen bond.

Question 19

The unit molecules (monomers)of carbohydrates are

A)monosaccharides.
B)amino acids.
C)nucleic acids.
D)fatty acids.

Question 20

Isotopes are atoms with

A)the same number of electrons and protons.
B)different numbers of protons and electrons.
C)the same numbers of protons but a different number of neutrons.
D)different numbers of electrons.

Question 21

Molecules that can absorb hydrogen ions and not change the pH of the substance are __________.

Question 22

When the solute concentration outside a cell is the same as the concentration inside the cell,the solution is called __________.

Question 23

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Prostaglandin

Question 24

A positively charged ion is a(n)__________.

Question 25

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Reduction-oxidation reactions

Question 26

An atom with the same number of protons but a different number of neutrons is called a(n)__________.

Question 27

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Radioactive isotope

Question 28

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Hydrogen ion donor

Question 29

The breakdown of large molecules into smaller ones in the presence of water is called __________.

Question 30

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Amino acid chain

Question 31

Lactose is composed of glucose and __________.

Question 32

The monomers of triglycerides are __________ and fatty acids.

Question 33

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Cellulose

Question 34

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Particle with no charge

Question 35

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Ammonium chloride

Question 36

Chemically,ATP is a(n)__________.

Question 37

The formation of polymers from simpler substances is referred to as __________.

Question 38

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Negatively charged particle

Question 39

Neutrons are __________ charged particles.

Question 40

Match the description below with the correct item from this list.
a.Redox
b.Electron
c.Neutron
d.Acid
e.Base
f.Salt
g.Glucose
h.Protein
i.Polysaccharide
j.Nucleic acid
k.Lipid
l.Tritium
Monomer