UTA Microbiology: Test 1 (Ch. 1-3) Questions With
Complete Solutions
A type of protein which accelerates chemical reactions is called
Correct Answers An Enzyme
ABC (ATP-Binding Cassette) system Correct Answers >200
different systems identified in prokaryotes, involved in uptake of
organic compounds (e.g., sugars, amino acids), inorganic
nutrients (e.g., sulfate, phosphate), and trace metals, high
substrate specificity, Contain periplasmic binding proteins
advantage of small cells Correct Answers higher surface to
volume ratio, tend to grow faster, and support greater nutrient
exchange
Aerobes Correct Answers use oxygen to obtain energy
Aerotaxis Correct Answers movement in response to oxygen
Algae and fungi do/don't have cell walls Correct Answers
have
All known pathogenic prokaryotes are Correct Answers
Bacteria
Anaerobes Correct Answers obtain energy in the absence of
oxygen
Anoxygenic Correct Answers photosynthesis does not produce
oxygen
, Antiporters Correct Answers transport a molecule across the
membrane while simultaneously transporting another molecule
in the opposite direction
atomic force microscopy (AFM) Correct Answers Good for
living specimens, A tiny stylus is placed close to a specimen,
stylus measures weak repulsive forces between it and the
specimen, computer generates an image based on the data
received from the stylus
autotrophs Correct Answers Use carbon dioxide as their
carbon source, primary producers
bright-field microscope Correct Answers Specimens are
visualized because of slight differences in contrast (density)
between them and their surrounding medium
capsules and slime layer Correct Answers Polysaccharide
layers, May be thick or thin, rigid or flexible, Assist in
attachment to surfaces, Protect against phagocytosis, Resist
desiccation
Carrier-Mediated Transport Systems Correct Answers Show
saturation effect, Highly specific
cell wall of archaea Correct Answers No peptidoglycan,
Typically no outer membrane, Pseudomurein
cells with unusual shapes Correct Answers Spirochetes,
appendaged bacteria, and filamentous bacteria
Complete Solutions
A type of protein which accelerates chemical reactions is called
Correct Answers An Enzyme
ABC (ATP-Binding Cassette) system Correct Answers >200
different systems identified in prokaryotes, involved in uptake of
organic compounds (e.g., sugars, amino acids), inorganic
nutrients (e.g., sulfate, phosphate), and trace metals, high
substrate specificity, Contain periplasmic binding proteins
advantage of small cells Correct Answers higher surface to
volume ratio, tend to grow faster, and support greater nutrient
exchange
Aerobes Correct Answers use oxygen to obtain energy
Aerotaxis Correct Answers movement in response to oxygen
Algae and fungi do/don't have cell walls Correct Answers
have
All known pathogenic prokaryotes are Correct Answers
Bacteria
Anaerobes Correct Answers obtain energy in the absence of
oxygen
Anoxygenic Correct Answers photosynthesis does not produce
oxygen
, Antiporters Correct Answers transport a molecule across the
membrane while simultaneously transporting another molecule
in the opposite direction
atomic force microscopy (AFM) Correct Answers Good for
living specimens, A tiny stylus is placed close to a specimen,
stylus measures weak repulsive forces between it and the
specimen, computer generates an image based on the data
received from the stylus
autotrophs Correct Answers Use carbon dioxide as their
carbon source, primary producers
bright-field microscope Correct Answers Specimens are
visualized because of slight differences in contrast (density)
between them and their surrounding medium
capsules and slime layer Correct Answers Polysaccharide
layers, May be thick or thin, rigid or flexible, Assist in
attachment to surfaces, Protect against phagocytosis, Resist
desiccation
Carrier-Mediated Transport Systems Correct Answers Show
saturation effect, Highly specific
cell wall of archaea Correct Answers No peptidoglycan,
Typically no outer membrane, Pseudomurein
cells with unusual shapes Correct Answers Spirochetes,
appendaged bacteria, and filamentous bacteria
