STRAIGHTERLINE MICROBIOLOGY 250
ACTUAL EXAM SCRIPT 2026 FULL
QUESTIONS AND CORRECT ANSWERS
◉ Two functions of bacterial appendages are___ and ___.
Answer: attachment; motility
◉ A group of protozoa that are not motile are the....
Answer: Plasmodium sp.
◉ During the Gram stain, the appplication of alcohol results in the
decolorization of ___ cells.
Answer: Gram-negative
◉ Lysozyme is most effective against.
Answer: gram positive organisms
◉ The transfer of genes during bacterial conjugation involves rigid,
tubular appendages called ___.
Answer: sex pili
,◉ Which of the following does not pertain to helminths?.
Answer: Members of the Kingdom Protista
◉ The site for ATP synthesis in bacterial cells is the....
Answer: cell membrane
◉ The core of every virus particle always contains....
Answer: Either DNA or RNA
◉ Which of the following is not a function of the eukaryotic
glycocalyx?.
Answer: Movement
◉ Two noncellular agents, smaller than viruses, are the infectious
proteins called _____ and the infectious RNA strands called _____..
Answer: Prions; viroids
◉ Termites are incects that require the protozoan Trichonympha in
their gut to synthesize the enzyme celluse to degrade the cellulose in
wood. The protozoan uses the end products of the cellulose
breakdown (glucose). This is a ___ relationship.
Answer: Mutualistic
, ◉ Many of the lakes in the United States are suffering from periodic
algae are naturally-occurring in the lake, when adjacent farm fields
are over-fertilized with diammonium phosphate, the run-off
deposits these nutrients in the lake, allowing the algae to grow
without limit. Which of the following statements is incorrect
regarding the overgrowth of algae?.
Answer: The algae are heterotrophs
◉ When it is important to count the number of cells, determine cell
size, and differentiate between dead and live cells, a ___ is used.
Answer:
◉ The time interval from parent to two new daughter cells is
called....
Answer: The generation time
◉ The cell wall will help prevent the cell from bursting in ___
conditions.
Answer: hypotonic
◉ Mediated transport of polar molecules and ions across the plasma
membrane utilizes a __ carrier that binds to the substance and
causes a conformational change to allow its movement across the
membrane..
Answer: Protein
ACTUAL EXAM SCRIPT 2026 FULL
QUESTIONS AND CORRECT ANSWERS
◉ Two functions of bacterial appendages are___ and ___.
Answer: attachment; motility
◉ A group of protozoa that are not motile are the....
Answer: Plasmodium sp.
◉ During the Gram stain, the appplication of alcohol results in the
decolorization of ___ cells.
Answer: Gram-negative
◉ Lysozyme is most effective against.
Answer: gram positive organisms
◉ The transfer of genes during bacterial conjugation involves rigid,
tubular appendages called ___.
Answer: sex pili
,◉ Which of the following does not pertain to helminths?.
Answer: Members of the Kingdom Protista
◉ The site for ATP synthesis in bacterial cells is the....
Answer: cell membrane
◉ The core of every virus particle always contains....
Answer: Either DNA or RNA
◉ Which of the following is not a function of the eukaryotic
glycocalyx?.
Answer: Movement
◉ Two noncellular agents, smaller than viruses, are the infectious
proteins called _____ and the infectious RNA strands called _____..
Answer: Prions; viroids
◉ Termites are incects that require the protozoan Trichonympha in
their gut to synthesize the enzyme celluse to degrade the cellulose in
wood. The protozoan uses the end products of the cellulose
breakdown (glucose). This is a ___ relationship.
Answer: Mutualistic
, ◉ Many of the lakes in the United States are suffering from periodic
algae are naturally-occurring in the lake, when adjacent farm fields
are over-fertilized with diammonium phosphate, the run-off
deposits these nutrients in the lake, allowing the algae to grow
without limit. Which of the following statements is incorrect
regarding the overgrowth of algae?.
Answer: The algae are heterotrophs
◉ When it is important to count the number of cells, determine cell
size, and differentiate between dead and live cells, a ___ is used.
Answer:
◉ The time interval from parent to two new daughter cells is
called....
Answer: The generation time
◉ The cell wall will help prevent the cell from bursting in ___
conditions.
Answer: hypotonic
◉ Mediated transport of polar molecules and ions across the plasma
membrane utilizes a __ carrier that binds to the substance and
causes a conformational change to allow its movement across the
membrane..
Answer: Protein
