BIO 156 Exam 1 Practice Questions -
Back of Book 2024-2025 Edition. All
Questions & Correct, Verified Answers.
Graded A+
___ accepts electrons in alcoholic fermentation.
a. Oxygen
b. Pyruvate
c. Acetaldehyde
d. Ethanol - ANSc. Acetaldehyde
___ are always changed by participating in a reaction.
a. Enzymes
b. Cofactors
c. Reactants
d. Coenzymes - ANSc. Reactants
___ are to proteins as ___ are to nucleic acids.
a. Sugars; lipids
b. Sugars; proteins
c. Amino acids; hydrogen bonds
d. Amino acids; nucleotides - ANSd. Amino acids; nucleotides
___ cannot diffuse across a lipid bilayer.
a. Water molecules
b. Gases
c. Ions
d. Nonpolar molecules - ANSc. Ions
___ groups are the "acid" part of amino acids and fatty acids.
a. Hydroxyl (-OH)
b. Carboxyl (-COOH)
c. Methyl (-CH3)
d. Phosphate (-PO4) - ANSb. Carboxyl (-COOH)
___ is a simple sugar (a monosaccharide).
a. Ribose
b. Sucrose
c. Starch
d. All are monosaccharides - ANSa. Ribose
___ is life's primary source of energy.
, a. Food
b. Water
c. Sunlight
d. ATP - ANSc. Sunlight
___ is the transmission of DNA to offspring.
a. Reproduction
b. Development
c. Homeostasis
d. Inheritance - ANSa. Reproduction
___ move around for at least part of their life.
a. Living organisms
b. Animals
c. Species
d. Eukaryotes - ANSb. Animals
A ___ can help keep the pH of a solution stable.
a. covalent bond
b. hydrogen bond
c. buffer
d. pH - ANSc. buffer
A ___ is an example of protein secondary structure.
a. barrel
b. polypeptide
c. domain
d. helix - ANSd. helix
A ___ is dissolved in a solvent.
a. molecule
b. salt
c. solute
d. chemical bond - ANSc. solute
A bacterium is ___ (choose all that apply).
a. an organism
b. single-celled
c. an animal
d. a eukaryote - ANSa. an organism
b. single-celled
A butterfly is a(n) ___ (choose all that apply).
a. organism
b. domain
c. species
Back of Book 2024-2025 Edition. All
Questions & Correct, Verified Answers.
Graded A+
___ accepts electrons in alcoholic fermentation.
a. Oxygen
b. Pyruvate
c. Acetaldehyde
d. Ethanol - ANSc. Acetaldehyde
___ are always changed by participating in a reaction.
a. Enzymes
b. Cofactors
c. Reactants
d. Coenzymes - ANSc. Reactants
___ are to proteins as ___ are to nucleic acids.
a. Sugars; lipids
b. Sugars; proteins
c. Amino acids; hydrogen bonds
d. Amino acids; nucleotides - ANSd. Amino acids; nucleotides
___ cannot diffuse across a lipid bilayer.
a. Water molecules
b. Gases
c. Ions
d. Nonpolar molecules - ANSc. Ions
___ groups are the "acid" part of amino acids and fatty acids.
a. Hydroxyl (-OH)
b. Carboxyl (-COOH)
c. Methyl (-CH3)
d. Phosphate (-PO4) - ANSb. Carboxyl (-COOH)
___ is a simple sugar (a monosaccharide).
a. Ribose
b. Sucrose
c. Starch
d. All are monosaccharides - ANSa. Ribose
___ is life's primary source of energy.
, a. Food
b. Water
c. Sunlight
d. ATP - ANSc. Sunlight
___ is the transmission of DNA to offspring.
a. Reproduction
b. Development
c. Homeostasis
d. Inheritance - ANSa. Reproduction
___ move around for at least part of their life.
a. Living organisms
b. Animals
c. Species
d. Eukaryotes - ANSb. Animals
A ___ can help keep the pH of a solution stable.
a. covalent bond
b. hydrogen bond
c. buffer
d. pH - ANSc. buffer
A ___ is an example of protein secondary structure.
a. barrel
b. polypeptide
c. domain
d. helix - ANSd. helix
A ___ is dissolved in a solvent.
a. molecule
b. salt
c. solute
d. chemical bond - ANSc. solute
A bacterium is ___ (choose all that apply).
a. an organism
b. single-celled
c. an animal
d. a eukaryote - ANSa. an organism
b. single-celled
A butterfly is a(n) ___ (choose all that apply).
a. organism
b. domain
c. species
