BIO 101 LECTURE EXAM #2 2026 ACTUAL QUESTIONS WITH
VERIFIED SOLUTIONS.
Which of the following is true regarding hydrolysis and dehydration synthesis reactions? -
(ANSWER)Dehydration reactions assemble polymers, and hydrolysis reactions break down polymers.
Molecules that have the same number of atoms of the same elements, but different structures are
termed - (ANSWER)isomers
A molecule with the chemical formula C6H12O6 is probably a - (ANSWER)carbohydrate
Glycogen, the storage form of glucose in animal cells, is a long polymer composed of many glucose
(monosaccharide) monomers. How is glycogen classified? - (ANSWER)polysaccharide
Why are human sex hormones considered to be lipids? - (ANSWER)they are not soluble in water
Which of the following best describes the quaternary structure of a protein? - (ANSWER)two or more
polypeptide chains come together to form a functional protein
14C-labeled uridine triphosphate is added to the growth medium of cells. (HINT: radioactive uridine
triphosphate will be incorporated into molecules in the place of URACIL.) What macromolecules will this
radioactive uridine triphosphate label? - (ANSWER)RNA
Which of the following is not a CORRECT monomer/polymer pairing? - (ANSWER)simple sugars/DNA
monomer/polymer pairs - (ANSWER)monosaccharide/polysaccharide
amino acid/protein
deoxyribonucleotide/DNA
ribonucleotide/RNA
, BIO 101 LECTURE EXAM #2 2026 ACTUAL QUESTIONS WITH
VERIFIED SOLUTIONS.
Of the four main categories of biological molecules, which one functions in the storage and use of
genetic material? - (ANSWER)Nucleic acid
Of the four main categories of biological molecules, which one is illustrated below? - (ANSWER)lipid
The molecule ABOVE has which of the following functional groups? - (ANSWER)Hydroxyl
The molecule at the right is a monomer of which of the four main categories of biological molecules? -
(ANSWER)nucleic acid
Large numbers of ribosomes are present in cells that specialize in producing which of the following
molecules? - (ANSWER)proteins
One of the key innovations in the evolution of eukaryotes from a prokaryotic ancestor is the
endomembrane system. What eukaryotic organelles or features might have evolved as a part of, or as
an elaboration of, the endomembrane system? - (ANSWER)nuclear envelope
Which of the following is a CORRECT difference between prokaryotic and eukaryotic cells? -
(ANSWER)Eukaryotic cells have membrane-bound organelles.
If the volume of a cell increases, the surface area of the cell will ________________. - (ANSWER)increase
to a lesser degree
Which of the following is INCORRECT (regarding prokaryotes)? - (ANSWER)Most bacteria do not have a
cell wall.
The part of the cell indicated is a ____ - (ANSWER)golgi apparatus
VERIFIED SOLUTIONS.
Which of the following is true regarding hydrolysis and dehydration synthesis reactions? -
(ANSWER)Dehydration reactions assemble polymers, and hydrolysis reactions break down polymers.
Molecules that have the same number of atoms of the same elements, but different structures are
termed - (ANSWER)isomers
A molecule with the chemical formula C6H12O6 is probably a - (ANSWER)carbohydrate
Glycogen, the storage form of glucose in animal cells, is a long polymer composed of many glucose
(monosaccharide) monomers. How is glycogen classified? - (ANSWER)polysaccharide
Why are human sex hormones considered to be lipids? - (ANSWER)they are not soluble in water
Which of the following best describes the quaternary structure of a protein? - (ANSWER)two or more
polypeptide chains come together to form a functional protein
14C-labeled uridine triphosphate is added to the growth medium of cells. (HINT: radioactive uridine
triphosphate will be incorporated into molecules in the place of URACIL.) What macromolecules will this
radioactive uridine triphosphate label? - (ANSWER)RNA
Which of the following is not a CORRECT monomer/polymer pairing? - (ANSWER)simple sugars/DNA
monomer/polymer pairs - (ANSWER)monosaccharide/polysaccharide
amino acid/protein
deoxyribonucleotide/DNA
ribonucleotide/RNA
, BIO 101 LECTURE EXAM #2 2026 ACTUAL QUESTIONS WITH
VERIFIED SOLUTIONS.
Of the four main categories of biological molecules, which one functions in the storage and use of
genetic material? - (ANSWER)Nucleic acid
Of the four main categories of biological molecules, which one is illustrated below? - (ANSWER)lipid
The molecule ABOVE has which of the following functional groups? - (ANSWER)Hydroxyl
The molecule at the right is a monomer of which of the four main categories of biological molecules? -
(ANSWER)nucleic acid
Large numbers of ribosomes are present in cells that specialize in producing which of the following
molecules? - (ANSWER)proteins
One of the key innovations in the evolution of eukaryotes from a prokaryotic ancestor is the
endomembrane system. What eukaryotic organelles or features might have evolved as a part of, or as
an elaboration of, the endomembrane system? - (ANSWER)nuclear envelope
Which of the following is a CORRECT difference between prokaryotic and eukaryotic cells? -
(ANSWER)Eukaryotic cells have membrane-bound organelles.
If the volume of a cell increases, the surface area of the cell will ________________. - (ANSWER)increase
to a lesser degree
Which of the following is INCORRECT (regarding prokaryotes)? - (ANSWER)Most bacteria do not have a
cell wall.
The part of the cell indicated is a ____ - (ANSWER)golgi apparatus
