TCC Microbiology Exam 1 with all Correct & 100% Verified
Answers |Already Graded A+
Active Transport ✔Correct Answer-movement of molecules from areas of low to high
concentration; requires energy
amphitrichous ✔Correct Answer-flagella extending from both sides of the cell
binary fission ✔Correct Answer-asexual reproduction where cell splits in half
fimbriea ✔Correct Answer-sticky, bristle like projections adhere to one another and to
substances in the enviroment
flagellin ✔Correct Answer-a globular protein that arranges itself in a hollow cylinder to form
the filament in a bacterial flagellum
hypertonic ✔Correct Answer-solution with a hight concentration of solutes
negative stain ✔Correct Answer-leave cell colorless and stains the background
pilli ✔Correct Answer-longer than fimbriae shorter than flagella. hollow projections
plasmisd ✔Correct Answer-a small, circular, double-stranded DNA molecule that is distinct
from a cell's chromosomal DNA.
porins ✔Correct Answer-any of a class of proteins whose molecules can form channels (large
enough to allow the passage of small ions and molecules) through cellular membranes.
virulent ✔Correct Answer-extremely severe or harmful in its effects.
acidic dyes ✔Correct Answer-anionic dyes
counterstain ✔Correct Answer-contrasting stain used after primary stain
endospore ✔Correct Answer-non-reproductive, dormant structures formed by certain
bacteria to allow them to survive adverse conditions
fermentation ✔Correct Answer-process by which glucose is converted to alcohol or lactic acid
with production of only 2 ATP
hypotonic ✔Correct Answer-solution with a lower concentration of solutes
, fluorescein ✔Correct Answer-attaches to cells of BACILLUS ANTHRACIS, and appears apple
green when viewed in a fluorescence microscope
lysozyme ✔Correct Answer-antibacterial protein secreted in sweat
magnetosome ✔Correct Answer-contains magnetite which allows bacterium to orient itself
with in the enviroment
metabolism ✔Correct Answer-the ability of organisms to take in nutrients from outside
themselves and use the nutrients in a series of controlled chemical reactions to provide the
energy and structures needed to grow, reproduce, and be responsive
peptidoglycan ✔Correct Answer-complex polysaccharides in cell wall
turbidity ✔Correct Answer-cloudiness or haziness of a fluid caused by large numbers of
individual particles that are generally invisible to the naked eye, similar to smoke in air.
lactid acid ✔Correct Answer-OH O
_=
CH3-CH-C-OH
product of fermentation in many types of cells.
pyruvic acid ✔Correct Answer-O O
==
CH3-C-C-OH
End product of glycolysis
active site ✔Correct Answer-a region on an enzyme that binds to a protein or other substance
during a reaction.
axial filament ✔Correct Answer-internal filament
basic dye ✔Correct Answer-cationic dyes, most commonly used
monotrichous ✔Correct Answer-one flagella
mordant ✔Correct Answer-in microscopy, the substance that binds to a dye and mike it less
soluble
osmotic pressure ✔Correct Answer-the pressure exerted across a selectively permeable
membrane by the solutes in a solution on one side of the membrane.
Answers |Already Graded A+
Active Transport ✔Correct Answer-movement of molecules from areas of low to high
concentration; requires energy
amphitrichous ✔Correct Answer-flagella extending from both sides of the cell
binary fission ✔Correct Answer-asexual reproduction where cell splits in half
fimbriea ✔Correct Answer-sticky, bristle like projections adhere to one another and to
substances in the enviroment
flagellin ✔Correct Answer-a globular protein that arranges itself in a hollow cylinder to form
the filament in a bacterial flagellum
hypertonic ✔Correct Answer-solution with a hight concentration of solutes
negative stain ✔Correct Answer-leave cell colorless and stains the background
pilli ✔Correct Answer-longer than fimbriae shorter than flagella. hollow projections
plasmisd ✔Correct Answer-a small, circular, double-stranded DNA molecule that is distinct
from a cell's chromosomal DNA.
porins ✔Correct Answer-any of a class of proteins whose molecules can form channels (large
enough to allow the passage of small ions and molecules) through cellular membranes.
virulent ✔Correct Answer-extremely severe or harmful in its effects.
acidic dyes ✔Correct Answer-anionic dyes
counterstain ✔Correct Answer-contrasting stain used after primary stain
endospore ✔Correct Answer-non-reproductive, dormant structures formed by certain
bacteria to allow them to survive adverse conditions
fermentation ✔Correct Answer-process by which glucose is converted to alcohol or lactic acid
with production of only 2 ATP
hypotonic ✔Correct Answer-solution with a lower concentration of solutes
, fluorescein ✔Correct Answer-attaches to cells of BACILLUS ANTHRACIS, and appears apple
green when viewed in a fluorescence microscope
lysozyme ✔Correct Answer-antibacterial protein secreted in sweat
magnetosome ✔Correct Answer-contains magnetite which allows bacterium to orient itself
with in the enviroment
metabolism ✔Correct Answer-the ability of organisms to take in nutrients from outside
themselves and use the nutrients in a series of controlled chemical reactions to provide the
energy and structures needed to grow, reproduce, and be responsive
peptidoglycan ✔Correct Answer-complex polysaccharides in cell wall
turbidity ✔Correct Answer-cloudiness or haziness of a fluid caused by large numbers of
individual particles that are generally invisible to the naked eye, similar to smoke in air.
lactid acid ✔Correct Answer-OH O
_=
CH3-CH-C-OH
product of fermentation in many types of cells.
pyruvic acid ✔Correct Answer-O O
==
CH3-C-C-OH
End product of glycolysis
active site ✔Correct Answer-a region on an enzyme that binds to a protein or other substance
during a reaction.
axial filament ✔Correct Answer-internal filament
basic dye ✔Correct Answer-cationic dyes, most commonly used
monotrichous ✔Correct Answer-one flagella
mordant ✔Correct Answer-in microscopy, the substance that binds to a dye and mike it less
soluble
osmotic pressure ✔Correct Answer-the pressure exerted across a selectively permeable
membrane by the solutes in a solution on one side of the membrane.
