WGU C785 UNIT 2 EXAM WITH
100% CORRECT ANSWERS 2026
Hydrogen bond correct answer Weak bond interaction
Between two molecules
amino group correct answer Consists of hydorgen and nitrogen
atoms (-NH3+)
macromolecules correct answer A giant molecule in a living
organism formed by the joining of smaller molecules: a protein,
carbohydrate, or nucleic acid.
polymer correct answer a long molecule consisting of many
similar or identical building blocks linked by covalent bonds
Amino acid correct answer Amino group + Carboxylic acid + R
group = Amino acid
carboxyl group correct answer A -COOH group, found in
organic acids.
Coo-, O=C-O-
Four classes of biological macromolecules correct answer
Proteins, carbohydrates, nucleic acids, lipids
, SPONCH correct answer Sulfur phosphorous oxygen nitrogen
carbon hydrogen
polymer correct answer a long molecule consisting of many
similar or identical monomers linked together by covalent bonds.
R group correct answer a functional group that defines a
particular amino acid that makes it a specific protein (20 amino
acids) aka side chain
Catalyst correct answer Speed up chemical reactions but
remain unchanged by the reaction.
monomers correct answer repeating units that serve as the
building blocks of a polymer
enzymes correct answer specialized macromolecules that
speed up chemical reactions in cells
alpha carbon correct answer the central carbon atom of each
amino acid
Atomic number correct answer number of protons
atomic mass correct answer number of protons plus number of
neutrons
100% CORRECT ANSWERS 2026
Hydrogen bond correct answer Weak bond interaction
Between two molecules
amino group correct answer Consists of hydorgen and nitrogen
atoms (-NH3+)
macromolecules correct answer A giant molecule in a living
organism formed by the joining of smaller molecules: a protein,
carbohydrate, or nucleic acid.
polymer correct answer a long molecule consisting of many
similar or identical building blocks linked by covalent bonds
Amino acid correct answer Amino group + Carboxylic acid + R
group = Amino acid
carboxyl group correct answer A -COOH group, found in
organic acids.
Coo-, O=C-O-
Four classes of biological macromolecules correct answer
Proteins, carbohydrates, nucleic acids, lipids
, SPONCH correct answer Sulfur phosphorous oxygen nitrogen
carbon hydrogen
polymer correct answer a long molecule consisting of many
similar or identical monomers linked together by covalent bonds.
R group correct answer a functional group that defines a
particular amino acid that makes it a specific protein (20 amino
acids) aka side chain
Catalyst correct answer Speed up chemical reactions but
remain unchanged by the reaction.
monomers correct answer repeating units that serve as the
building blocks of a polymer
enzymes correct answer specialized macromolecules that
speed up chemical reactions in cells
alpha carbon correct answer the central carbon atom of each
amino acid
Atomic number correct answer number of protons
atomic mass correct answer number of protons plus number of
neutrons
