Question 1

Isotopes are atoms with

Accepted Answer

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. 
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. C

Question 2

The monomers of triglycerides are __________ and fatty acids.

Accepted Answer

glycerol

Question 3

The atomic number equals the number of

Accepted Answer

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

Question 4

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

Accepted Answer

The answer of Molecules that can absorb hydrogen ions and...

Question 5

Match the description below with the correct item from this list.
-Monomer

Accepted Answer

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 
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

Question 6

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

Accepted Answer

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

Question 7

The RNA nucleotide base that pairs with adenine of DNA is

Accepted Answer

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

Question 8

Glucose and fructose are examples of

Accepted Answer

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

Question 9

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

Accepted Answer

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

Question 10

Match the description below with the correct item from this list.
-Reduction-oxidation reactions

Accepted Answer

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 
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

Question 11

The atomic weight is equal to the sum of

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

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

Question 14

Protons are

Accepted Answer

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

Question 15

Match the description below with the correct item from this list.
-Particle with no charge

Accepted Answer

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 
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

Question 16

Match the description below with the correct item from this list.
-Radioactive isotope

Accepted Answer

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 
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

Question 17

Cytosine always undergoes complementary base pairing with

Accepted Answer

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

Question 18

The unit molecules (monomers)of carbohydrates are

Accepted Answer

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

Question 19

The smallest units of matter are

Accepted Answer

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

Question 20

Two glucose molecules form

Accepted Answer

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

Exam 2: Chemistry of Life

Isotopes are atoms with

The monomers of triglycerides are __________ and fatty acids.

The atomic number equals the number of

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

Match the description below with the correct item from this list. -Monomer

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

The RNA nucleotide base that pairs with adenine of DNA is

Glucose and fructose are examples of

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

Match the description below with the correct item from this list. -Reduction-oxidation reactions

The atomic weight is equal to the sum of

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

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

Protons are

Match the description below with the correct item from this list. -Particle with no charge

Match the description below with the correct item from this list. -Radioactive isotope

Cytosine always undergoes complementary base pairing with

The unit molecules (monomers)of carbohydrates are

The smallest units of matter are

Two glucose molecules form

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