BIO 235 MICROBIOLOGY EXAM 1
QUESTIONS AND ANSWERS (2026-
2027) (VERIFIED ANSWERS)
ABC transport - correct answer- involves
periplasmic binding proteins and energy from ATP
acidic dye - correct answer- chromophore is an
anion (negatively charged)
activation energy - correct answer- energy
required to bring all molecules in a chemical reaction into
the reactive state
active transport - correct answer- movement of
molecules across a cell membrane from a region of their
lower concentration to a region of their higher
concentration (against gradient)
anabolism - correct answer- uses energy and
building blocks to build large molecules
,antiport - correct answer- molecules are
transported simultaneously in opposite directions from
each other
Antoni van Leeuwenhoek - correct answer- -
made a simple microscope originally to view textiles, saw
microbes instead
-first person to observe and describe microorganisms
accurately
archaeal membranes - correct answer- -have
ether linkages in phospholipids (bacteria and eukarya
have ester)
-archaeal lipids lack fatty acids - they have isoprenes
instead
-membrane can exist as lipid monolayer, bilayer, or a
mixture
autotroph - correct answer- energy source is
produced by the organism
, bacillus - correct answer- rod shape
basic dye - correct answer- chromophore is a
cation (positively charged)
brightfield illumination microscopy - correct
answer- -dark objects are visible against a bright
background
-light reflected off the specimen does not enter
the objective lens
-used for stained microbial cells
capsule - correct answer- -layer outside of the
cell wall that neatly organized and attached firmly to the
wall
-prevents phagocytosis
catabolism - correct answer- provides energy
and building blocks for anabolism
QUESTIONS AND ANSWERS (2026-
2027) (VERIFIED ANSWERS)
ABC transport - correct answer- involves
periplasmic binding proteins and energy from ATP
acidic dye - correct answer- chromophore is an
anion (negatively charged)
activation energy - correct answer- energy
required to bring all molecules in a chemical reaction into
the reactive state
active transport - correct answer- movement of
molecules across a cell membrane from a region of their
lower concentration to a region of their higher
concentration (against gradient)
anabolism - correct answer- uses energy and
building blocks to build large molecules
,antiport - correct answer- molecules are
transported simultaneously in opposite directions from
each other
Antoni van Leeuwenhoek - correct answer- -
made a simple microscope originally to view textiles, saw
microbes instead
-first person to observe and describe microorganisms
accurately
archaeal membranes - correct answer- -have
ether linkages in phospholipids (bacteria and eukarya
have ester)
-archaeal lipids lack fatty acids - they have isoprenes
instead
-membrane can exist as lipid monolayer, bilayer, or a
mixture
autotroph - correct answer- energy source is
produced by the organism
, bacillus - correct answer- rod shape
basic dye - correct answer- chromophore is a
cation (positively charged)
brightfield illumination microscopy - correct
answer- -dark objects are visible against a bright
background
-light reflected off the specimen does not enter
the objective lens
-used for stained microbial cells
capsule - correct answer- -layer outside of the
cell wall that neatly organized and attached firmly to the
wall
-prevents phagocytosis
catabolism - correct answer- provides energy
and building blocks for anabolism
