BIO 183 EXAM 2 | COMPREHENSIVE BIOLOGY
STUDY GUIDE, PRACTICE QUESTIONS &
ANSWERS 2026/2027
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Term
It is the site of ribosomal RNA synthesis.
Give this one a go later!
Which of the following characteristics is a way in which cells of a multicellular
fungus differ from cells of plants?
A) Only fungal cells can break down glucose by the process of glycolysis.
B) Some fungi have cells that lack crosswalls.
C) Fungal cells are never attached to neighboring cells.
D) Fungal cells have a large, central vacuole.
E) Fungi have more cellulose in their cell walls.
Which of the following statements is true of the cell nucleolus?
A) It is the site of DNA replication.
B) It is the site of ribosomal RNA synthesis.
, C) It contains most of the cells chromosomes.
D) It is only found in prokarytoic cells.
E) It is surrounded by a single membrane that is solid
Which of the following best describes the structure of a microfilament?
A) a pair of twisted "chains" composed of actin proteins
B) a rigid structure that surrounds the cells of plants and most bacteria
C) a network of long protein strands in the cytosol that helps support the cell
D) a system of membranes that modifies and packages proteins for export by the
cell
E) a double membrane that surrounds the nucleus in the cell
Which of the following best describes the structure of a microtubule?
A) a pair of twisted "cables" composed of several different proteins
B) a network of rodlike structures composed of dynein and kinesin
C) a pair of twisted "chains" composed of actin proteins
D) a solid, branching structure composed of tubulin proteins
E) a hollow rod composed of tubulin proteins
Don't know?
2 of 90
Definition
Do the nucleotides in DNA differ from one another and (if so) how?
A) The nucleotides within a DNA strand are all alike, but the two strands
differ .
B) The nucleotides have two different sugar groups.
C) All nucleotides are identical.
, DNA is damaged or not entirely
cyanobacteria
replicated
the increased amount of
, 3 of 90
Definition
According to recent ideas, how did eukaryotic cells acquire
chloroplasts?
A) Chloroplasts were taken up in food consumed by eukaryotic cells.
B) Chloroplasts evolved form mitochondria of eukaryotic cells.
C) Chloroplasts arose when aerobic prokarytoes became parasites of
eukaryotic cells.
D) Chloroplasts arose when photosynthetic prokaryotes become
symbionts of eukaryotic cells.
E) Chloroplasts arose from the endomembrane system of eukaryotic
cells.
Give this one a go later!
These organelles arose when certain ring composed of 9 sets of 2 rings
prokaryotes became endosymbionts (microtubules) with 2 rings in the
of eukaryotic cells. center
Chloroplasts arose when
They communicate through pores in
photosynthetic prokaryotes
the cell walls that allow cytoplasm to
become symbionts of
extend between adjacent cells.
eukaryotic cells.
Don't know?
4 of 90
STUDY GUIDE, PRACTICE QUESTIONS &
ANSWERS 2026/2027
1 of 90
Term
It is the site of ribosomal RNA synthesis.
Give this one a go later!
Which of the following characteristics is a way in which cells of a multicellular
fungus differ from cells of plants?
A) Only fungal cells can break down glucose by the process of glycolysis.
B) Some fungi have cells that lack crosswalls.
C) Fungal cells are never attached to neighboring cells.
D) Fungal cells have a large, central vacuole.
E) Fungi have more cellulose in their cell walls.
Which of the following statements is true of the cell nucleolus?
A) It is the site of DNA replication.
B) It is the site of ribosomal RNA synthesis.
, C) It contains most of the cells chromosomes.
D) It is only found in prokarytoic cells.
E) It is surrounded by a single membrane that is solid
Which of the following best describes the structure of a microfilament?
A) a pair of twisted "chains" composed of actin proteins
B) a rigid structure that surrounds the cells of plants and most bacteria
C) a network of long protein strands in the cytosol that helps support the cell
D) a system of membranes that modifies and packages proteins for export by the
cell
E) a double membrane that surrounds the nucleus in the cell
Which of the following best describes the structure of a microtubule?
A) a pair of twisted "cables" composed of several different proteins
B) a network of rodlike structures composed of dynein and kinesin
C) a pair of twisted "chains" composed of actin proteins
D) a solid, branching structure composed of tubulin proteins
E) a hollow rod composed of tubulin proteins
Don't know?
2 of 90
Definition
Do the nucleotides in DNA differ from one another and (if so) how?
A) The nucleotides within a DNA strand are all alike, but the two strands
differ .
B) The nucleotides have two different sugar groups.
C) All nucleotides are identical.
, DNA is damaged or not entirely
cyanobacteria
replicated
the increased amount of
, 3 of 90
Definition
According to recent ideas, how did eukaryotic cells acquire
chloroplasts?
A) Chloroplasts were taken up in food consumed by eukaryotic cells.
B) Chloroplasts evolved form mitochondria of eukaryotic cells.
C) Chloroplasts arose when aerobic prokarytoes became parasites of
eukaryotic cells.
D) Chloroplasts arose when photosynthetic prokaryotes become
symbionts of eukaryotic cells.
E) Chloroplasts arose from the endomembrane system of eukaryotic
cells.
Give this one a go later!
These organelles arose when certain ring composed of 9 sets of 2 rings
prokaryotes became endosymbionts (microtubules) with 2 rings in the
of eukaryotic cells. center
Chloroplasts arose when
They communicate through pores in
photosynthetic prokaryotes
the cell walls that allow cytoplasm to
become symbionts of
extend between adjacent cells.
eukaryotic cells.
Don't know?
4 of 90
