BIOS 3220 Exam 2 Review Exam
Question & Answers ( Latest 2025 )
Binary fission - CORRECT ANSWERS ✔✔A form of
asexual reproduction in single-celled organisms by which
one cell divides into two cells of the same size
Cell cycle - CORRECT ANSWERS ✔✔The regular
sequence of growth and division that cells undergo
Origin of replication - CORRECT ANSWERS ✔✔Site
where the replication of a DNA molecule begins,
consisting of a specific sequence of nucleotides.
Replisome - CORRECT ANSWERS ✔✔a complex of DNA
polymerase and other enzymes that catalyzes the
synthesis of DNA
Septation - CORRECT ANSWERS ✔✔formation of cross
walls between daughter cells
Cytokinesis - CORRECT ANSWERS ✔✔division of the
cytoplasm
Nucleoid occlusion - CORRECT ANSWERS ✔✔Occurs
when the nucleic region prevents FtsZ from forming a ring
while the DNA is still replicating.
,BIOS 3220 Exam 2 Review Exam
Question & Answers ( Latest 2025 )
Divisome - CORRECT ANSWERS ✔✔a collection of
proteins that aggregate at the region in a dividing
microbial cell where a septum will form
Penicillin-binding proteins (PBPs) - CORRECT ANSWERS
✔✔Bacterial cytoplasmic membrane proteins that act as
the initial receptors for penicillins and other beta-lactam
antibiotics
Autolysins - CORRECT ANSWERS ✔✔PBP enzymes that
degrade peptidoglycan at site where new units are added
Extreme environments - CORRECT ANSWERS
✔✔Locations with particularly difficult environments
where the development of tourism has only recently
occurred due to a niche market demand for somewhere
different with physical challenges
Extremophiles - CORRECT ANSWERS ✔✔live in
extreme environments
,BIOS 3220 Exam 2 Review Exam
Question & Answers ( Latest 2025 )
Halophiles - CORRECT ANSWERS ✔✔"salt-loving"
archaea that live in environments that have very high salt
concentrations
Osmophiles - CORRECT ANSWERS ✔✔live in habitats
with high solute concentration
compatible solutes - CORRECT ANSWERS
✔✔compounds used by cell to counteract low water
activity in surrounding environment
Water activity - CORRECT ANSWERS ✔✔measure of
how much water is available for use
Osmotolerant - CORRECT ANSWERS ✔✔tolerate a high
osmotic environment
Xerophiles - CORRECT ANSWERS ✔✔able to grow in
very dry environments
Acidophiles - CORRECT ANSWERS ✔✔grow in acidic
environments
, BIOS 3220 Exam 2 Review Exam
Question & Answers ( Latest 2025 )
Neutrophiles - CORRECT ANSWERS ✔✔organisms that
prefer pH levels between 5.5 and 8.5
Alkalophiles - CORRECT ANSWERS ✔✔grow in basic
enviroments
Cardinal temperatures - CORRECT ANSWERS ✔✔the
minimum, maximum, and optimum growth temperatures
for a given organism
Psychotolerant - CORRECT ANSWERS ✔✔organisms
that can grow at 0°C but have optima of 20°C to 40°C
Psychrophiles - CORRECT ANSWERS ✔✔cold-loving
microbes
Mesophile - CORRECT ANSWERS ✔✔bacteria that
prefers moderate temperature and develops best at
temperatures between 25 C and 40 C
Thermophiles - CORRECT ANSWERS ✔✔heat loving
microbes
Question & Answers ( Latest 2025 )
Binary fission - CORRECT ANSWERS ✔✔A form of
asexual reproduction in single-celled organisms by which
one cell divides into two cells of the same size
Cell cycle - CORRECT ANSWERS ✔✔The regular
sequence of growth and division that cells undergo
Origin of replication - CORRECT ANSWERS ✔✔Site
where the replication of a DNA molecule begins,
consisting of a specific sequence of nucleotides.
Replisome - CORRECT ANSWERS ✔✔a complex of DNA
polymerase and other enzymes that catalyzes the
synthesis of DNA
Septation - CORRECT ANSWERS ✔✔formation of cross
walls between daughter cells
Cytokinesis - CORRECT ANSWERS ✔✔division of the
cytoplasm
Nucleoid occlusion - CORRECT ANSWERS ✔✔Occurs
when the nucleic region prevents FtsZ from forming a ring
while the DNA is still replicating.
,BIOS 3220 Exam 2 Review Exam
Question & Answers ( Latest 2025 )
Divisome - CORRECT ANSWERS ✔✔a collection of
proteins that aggregate at the region in a dividing
microbial cell where a septum will form
Penicillin-binding proteins (PBPs) - CORRECT ANSWERS
✔✔Bacterial cytoplasmic membrane proteins that act as
the initial receptors for penicillins and other beta-lactam
antibiotics
Autolysins - CORRECT ANSWERS ✔✔PBP enzymes that
degrade peptidoglycan at site where new units are added
Extreme environments - CORRECT ANSWERS
✔✔Locations with particularly difficult environments
where the development of tourism has only recently
occurred due to a niche market demand for somewhere
different with physical challenges
Extremophiles - CORRECT ANSWERS ✔✔live in
extreme environments
,BIOS 3220 Exam 2 Review Exam
Question & Answers ( Latest 2025 )
Halophiles - CORRECT ANSWERS ✔✔"salt-loving"
archaea that live in environments that have very high salt
concentrations
Osmophiles - CORRECT ANSWERS ✔✔live in habitats
with high solute concentration
compatible solutes - CORRECT ANSWERS
✔✔compounds used by cell to counteract low water
activity in surrounding environment
Water activity - CORRECT ANSWERS ✔✔measure of
how much water is available for use
Osmotolerant - CORRECT ANSWERS ✔✔tolerate a high
osmotic environment
Xerophiles - CORRECT ANSWERS ✔✔able to grow in
very dry environments
Acidophiles - CORRECT ANSWERS ✔✔grow in acidic
environments
, BIOS 3220 Exam 2 Review Exam
Question & Answers ( Latest 2025 )
Neutrophiles - CORRECT ANSWERS ✔✔organisms that
prefer pH levels between 5.5 and 8.5
Alkalophiles - CORRECT ANSWERS ✔✔grow in basic
enviroments
Cardinal temperatures - CORRECT ANSWERS ✔✔the
minimum, maximum, and optimum growth temperatures
for a given organism
Psychotolerant - CORRECT ANSWERS ✔✔organisms
that can grow at 0°C but have optima of 20°C to 40°C
Psychrophiles - CORRECT ANSWERS ✔✔cold-loving
microbes
Mesophile - CORRECT ANSWERS ✔✔bacteria that
prefers moderate temperature and develops best at
temperatures between 25 C and 40 C
Thermophiles - CORRECT ANSWERS ✔✔heat loving
microbes
