TCU DR JONES MICROBIOLOGY FINAL || 360+ ACTUAL
QUESTIONS WITH VERIFIED ANSWERS || LATEST UPDATE
2026/2027 || MICROBIOLOGY REVIEW || HIGH-YIELD
STUDY GUIDE || COMPLETE TEST BANK || GRADED A+
prokaryotic cell with a rod shape - CORRECT ANSWER -bacillus
spherical bacterial cell - CORRECT ANSWER -coccus
spiral shaped bacteria - CORRECT ANSWER -vibrios, spirilla, spirochete
Other shapes of bacterial cells - CORRECT ANSWER -square, appendage,
star-shaped, filamentous
Structure and organization are based on specific processes cells need to carry
out: - CORRECT ANSWER -Sensing/responding to stimuli,
Compartmentation of metabolism, Growth and reproduction
Bacterial Flagella - CORRECT ANSWER -are long appendages Extending
from the cell surface used for cell motility
Anatomy of a bacterial flagella - CORRECT ANSWER -helical filament, a
hook, and a basal body
chemotaxis - CORRECT ANSWER -moving up the concentration gradient
of a chemical attractant
Pili - CORRECT ANSWER -are protein fibers extending from the surface
of many bacteria
Pili help the cell... - CORRECT ANSWER -Attach cells to surfaces and
form biofilms and microcolonies
conjugation pili are used to - CORRECT ANSWER -transfer genetic
material between cells
,Glycocalyx - CORRECT ANSWER -is an outer layer external to the cell
wall that is an adhering layer of polysaccharides (sometimes small proteins)
capsule - CORRECT ANSWER -A thick glycolayx bound to the cell
A slime layer - CORRECT ANSWER -A thinner, diffuse layer of
polysaccharides that protects cells from the environment, and allows them to
attach to surfaces
bacterial cell wall - CORRECT ANSWER -a tough and protective external
shell made of peptidoglycan
The cell wall's functions - CORRECT ANSWER -protects the cell from
injury, and to maintain cell shape and water balance
Gram-Positive bacteria - CORRECT ANSWER -have thick peptidoglycan
cell walls containing teichoic acid
Gram-Negative bacteria - CORRECT ANSWER -have a 2-dimensional
peptidoglycan layer and no teichoic acid
Has an outer membrane, separated from the cell membrane by the... -
CORRECT ANSWER -periplasmic space
porins - CORRECT ANSWER -in outer membrane, selectively allow small
molecules into the periplasmic space
represents the interface between the cell environment and the cell cytoplasm -
CORRECT ANSWER -The cell membrane
,The fluid mosaic model - CORRECT ANSWER -It is a fluid layer of
phospholipid and protein
...form a permeability barrier - CORRECT ANSWER -Hydrophobic fatty
acid chains in the phospholipids
Membrane proteins perform or aid in many functions - CORRECT
ANSWER -Cell wall synthesis, Energy metabolism, DNA replication,
Sensation of stimuli, Molecule transport
Antimicrobial substances may... - CORRECT ANSWER -...disrupt or
dissolve the bilayer
Binary Fission - CORRECT ANSWER -The cell doubles in mass, DNA
replicated in the two strands separate
Cytokinesis - CORRECT ANSWER -is an inward pinching of the cell
membrane and cell wall to separate the cell into two genetically identical cells
The generation (or doubling) time - CORRECT ANSWER -an interval
between successive binary fissions
This constant doubling of the numbers only occurs as long as... - CORRECT
ANSWER -nutrients for growth are available during the log phase of growth
A bacterial growth curve - CORRECT ANSWER -illustrates the dynamics
of growth
, During the lag phase - CORRECT ANSWER -no cell division occurs while
bacteria adapt to their new environment
The logarithmic (log) phase - CORRECT ANSWER -exponential growth of
the population occurs during this phase
Human disease symptoms usually develop during it - CORRECT ANSWER
-Log Phase
Stationary phase - CORRECT ANSWER -when reproductive and death
rates equalize
Decline (exponential death) phase - CORRECT ANSWER -the
accumulation of waste products and scarcity of resources causes it to enter
Endospores are a response to - CORRECT ANSWER -nutrient limitation
Endospores are a highly resistant survival structure formed by species of _____
and _____ when nutrient supplies are low - CORRECT ANSWER -
Clostridium and Bacillus
Spores can lay dormant for years then germinate into a vegetative cell,
withstand - CORRECT ANSWER -boiling water, alcohol and radiation
A stressed cell undergoes asymmetrical cell division creating... - CORRECT
ANSWER -creating a small prespore and a larger mother cell
The prespore contains - CORRECT ANSWER -Cytoplasm, DNA,
Dipicolinic
QUESTIONS WITH VERIFIED ANSWERS || LATEST UPDATE
2026/2027 || MICROBIOLOGY REVIEW || HIGH-YIELD
STUDY GUIDE || COMPLETE TEST BANK || GRADED A+
prokaryotic cell with a rod shape - CORRECT ANSWER -bacillus
spherical bacterial cell - CORRECT ANSWER -coccus
spiral shaped bacteria - CORRECT ANSWER -vibrios, spirilla, spirochete
Other shapes of bacterial cells - CORRECT ANSWER -square, appendage,
star-shaped, filamentous
Structure and organization are based on specific processes cells need to carry
out: - CORRECT ANSWER -Sensing/responding to stimuli,
Compartmentation of metabolism, Growth and reproduction
Bacterial Flagella - CORRECT ANSWER -are long appendages Extending
from the cell surface used for cell motility
Anatomy of a bacterial flagella - CORRECT ANSWER -helical filament, a
hook, and a basal body
chemotaxis - CORRECT ANSWER -moving up the concentration gradient
of a chemical attractant
Pili - CORRECT ANSWER -are protein fibers extending from the surface
of many bacteria
Pili help the cell... - CORRECT ANSWER -Attach cells to surfaces and
form biofilms and microcolonies
conjugation pili are used to - CORRECT ANSWER -transfer genetic
material between cells
,Glycocalyx - CORRECT ANSWER -is an outer layer external to the cell
wall that is an adhering layer of polysaccharides (sometimes small proteins)
capsule - CORRECT ANSWER -A thick glycolayx bound to the cell
A slime layer - CORRECT ANSWER -A thinner, diffuse layer of
polysaccharides that protects cells from the environment, and allows them to
attach to surfaces
bacterial cell wall - CORRECT ANSWER -a tough and protective external
shell made of peptidoglycan
The cell wall's functions - CORRECT ANSWER -protects the cell from
injury, and to maintain cell shape and water balance
Gram-Positive bacteria - CORRECT ANSWER -have thick peptidoglycan
cell walls containing teichoic acid
Gram-Negative bacteria - CORRECT ANSWER -have a 2-dimensional
peptidoglycan layer and no teichoic acid
Has an outer membrane, separated from the cell membrane by the... -
CORRECT ANSWER -periplasmic space
porins - CORRECT ANSWER -in outer membrane, selectively allow small
molecules into the periplasmic space
represents the interface between the cell environment and the cell cytoplasm -
CORRECT ANSWER -The cell membrane
,The fluid mosaic model - CORRECT ANSWER -It is a fluid layer of
phospholipid and protein
...form a permeability barrier - CORRECT ANSWER -Hydrophobic fatty
acid chains in the phospholipids
Membrane proteins perform or aid in many functions - CORRECT
ANSWER -Cell wall synthesis, Energy metabolism, DNA replication,
Sensation of stimuli, Molecule transport
Antimicrobial substances may... - CORRECT ANSWER -...disrupt or
dissolve the bilayer
Binary Fission - CORRECT ANSWER -The cell doubles in mass, DNA
replicated in the two strands separate
Cytokinesis - CORRECT ANSWER -is an inward pinching of the cell
membrane and cell wall to separate the cell into two genetically identical cells
The generation (or doubling) time - CORRECT ANSWER -an interval
between successive binary fissions
This constant doubling of the numbers only occurs as long as... - CORRECT
ANSWER -nutrients for growth are available during the log phase of growth
A bacterial growth curve - CORRECT ANSWER -illustrates the dynamics
of growth
, During the lag phase - CORRECT ANSWER -no cell division occurs while
bacteria adapt to their new environment
The logarithmic (log) phase - CORRECT ANSWER -exponential growth of
the population occurs during this phase
Human disease symptoms usually develop during it - CORRECT ANSWER
-Log Phase
Stationary phase - CORRECT ANSWER -when reproductive and death
rates equalize
Decline (exponential death) phase - CORRECT ANSWER -the
accumulation of waste products and scarcity of resources causes it to enter
Endospores are a response to - CORRECT ANSWER -nutrient limitation
Endospores are a highly resistant survival structure formed by species of _____
and _____ when nutrient supplies are low - CORRECT ANSWER -
Clostridium and Bacillus
Spores can lay dormant for years then germinate into a vegetative cell,
withstand - CORRECT ANSWER -boiling water, alcohol and radiation
A stressed cell undergoes asymmetrical cell division creating... - CORRECT
ANSWER -creating a small prespore and a larger mother cell
The prespore contains - CORRECT ANSWER -Cytoplasm, DNA,
Dipicolinic
