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MCB3020 EXAM 1 USF QUESTIONS AND ANSWERS
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MCB3020 EXAM 1 USF QUESTIONS AND ANSWERS
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Name: Score:84 Multiple choice questions
Term 1 of 84
hopanoids
can survive under extreme pressure and will rupture if exposed to normal atmospheric
pressure
specialized intracellular membranes
spiral-shaped bacteria that have flexible walls and are capable of movement
Structurally similar to sterols
Present in membranes of many Bacteria
(modify rigidity and fluidity)
Term 2 of 84
Psychrophiles
chitin (nag)
heat loving (rich in saturated fatty acids)
cold-loving microbes
(Rich in unsaturated fatty acids)
can survive under extreme pressure and will rupture if exposed to normal atmospheric
pressure
,Term 3 of 84
essential cations
Mg^2+ Fe^8+ K+ Ca^2+
Mg^2+
Fe^2+
K+
Ca^2+
Mg^2+ Fe^3+ K+ Ca^2+
Mg^2+ Fe^2+ K+ Ca^102+
Term 4 of 84
negative stain
colors the background, which makes capsules more visible
targets the nucleus of bacterial cells, enhancing capsule visibility
stains the bacterial cell wall, making capsules less visible
highlights the flagella of bacteria, making capsules invisible
Term 5 of 84
Endosymbiosis
A theorized process in which early eukaryotic cells were formed from simpler
prokaryotes.
The process of cell division in prokaryotic cells.
A type of photosynthesis found in plants.
The movement of molecules across a cell membrane.
,Term 6 of 84
Thylakoid
specialized intracellular membranes
protozoa, fungi, algae
aqueous region between outer and inner membrane
peptidoglycan
Term 7 of 84
Fungal Cell walls
heat loving (rich in saturated fatty acids)
a staining method that distinguishes between two different kinds of bacterial cell walls.
developed the endosymbiotic theory.
chitin (NAG)
Term 8 of 84
Halophiles
salt loving
acid loving
redi and pasteur
high pressure loving
Term 9 of 84
Archaea cell wall
composed of surface-layer (S-layer) proteins
This wall is highly permeable
consists of a phospholipid bilayer containing lipid soluble proteins
The ability to clearly distinguish the individual parts of an object
carrier proteins that use energy from ATP to transport solutes
, Term 10 of 84
Prokaryotic cell division results in
chemical affinity, labeled antibodies, dna hybridization
binary fission: splits in 2, exact copies, quick and efficient with few mutations, but
reduces amount of genetic variation
separate but identical daughter cells
binary fission: splits in 2, exact copies, quick and efficient with few mutations, but
reduces amount of genetic variation
Term 11 of 84
The gylcan chains consist of repeating disaccharide molecule
Glucose and galactose
N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM)
Chitin and nag
What is difference between genotype and phenotype?
Term 12 of 84
extremophiles
live in extreme environments
bacteria that live on or in our bodies
contain nuclei
protozoa, fungi, algae
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