TEST BANK FOR MICROBIOLOGY OPENTAX FINAL EXAM /THIS WEEK/ EXAM UPDATED AND VERIFIED BY EXPERT

MICROBIOLOGY OPENTAX FINAL EXAM /THIS WEEK/
EXAM UPDATED AND VERIFIED BY EXPERT

A bacterial chromosome is located in which of the following?
b b b b b b b b b




a.the nucleoid region
b b




b.the nucleus
b




c.the thylakoids
b




d.the capsule - a.the nucleoid region
b b b b b




A bacterium possessing a tuft of flagella at one end of its cell is called
b b b b b b b b b b b b b b




a.Lophotrichous
b.Peritrichous
c.Monotrichous
d.Amphitrichous - Lophotrichous b b




Acid-fast cell walls contain high concentrations of
b b b b b b




a.peptidoglycan
b.teichoic acid b




c.mycolic acid b




d.pseudomurein - mycolic acid b b b




All of the following are found in the cell walls of gram-positive bacteria EXCEPT
b b b b b b b b b b b b b



__________.
b

,a.teichoic acid b




b.peptidoglycan
c.lipoteichoic acid b




d.lipid A - Lipid A
b b b b




Bacteria divide by b b




a.binary fission b




b.Mitosis
c.spore formation
b




d.Budding - Bynary fission b b b




Chemotaxis refers to the ability of microorganisms to __________.
b b b b b b b b




a.survive under adverse conditions
b b b




b.attach to solid surfaces
b b b




c.move in a wavelike motion
b b b b




d.move toward or away from chemical stimuli - move toward or away from
b b b b b b b b b b b b



chemical stimuli
b b




Elementary bodies are found in the phylum
b b b b b b




a.Chlamydiae
b.Chloroflexi
c.Planctomycetes
d.Bacteroidetes - Chlamydiae b b




Enteric bacteria would most likely be found in which environment?
b b b b b b b b b

,a.warm, tropical soil
b b




b.intestinal tract of an animal b b b b




c.human skin b




d.unpasteurized milk and apple juice - intestinal tract of an animal
b b b b b b b b b b




In chloroplasts, chlorophyll is contained in flattened sacs called
b b b b b b b b




a.Cisternae
b.Vacuoles
c.Cristae
d.Thylakoids - Thylakoids b b




Peptic ulcers in humans are commonly caused by members of the genus
b b b b b b b b b b b




a.Shigella
b.Enterobacter
c.Helicobacter
d.Salmonella - helicobacter b b




Rickettsias differ from chlamydias in that only rickettsias
b b b b b b b




a.form spores b




b.are intracellular parasites
b b




c.are Gram-negative
b




d.require an arthropod for transmission - require an arthropod for transmission
b b b b b b b b b b




Spherical bacteria that divide and remain attached in chainlike patterns are called
b b b b b b b b b b b



__________.
b

, a.Staphylococci
b.Tetrads
c.Streptococci
d.Spirochetes - Streptococci b b




The two domains of prokaryotes are
b b b b b




a.Bacteria and Protista b b




b.Archaea and Fungi b b




c.Bacteria and Archaea b b




d.Bacteria and Fungi - Bacteria and Archaea
b b b b b b




What are the sizes of two subunits used to compose prokaryotic ribosomes?
b b b b b b b b b b b




a.30S + 50S
b b




b.30S + 40S
b b




c.20S + 50S
b b




d.40S + 60S - 30S + 50S
b b b b b b




Which is NOT true of the rickettsias?
b b b b b b




a.They are classified as beta-proteobacteria
b b b b




b.They are obligate intracellular parasites
b b b b




c.They can cause human diseases often characterized by a rash
b b b b b b b b b




d.They are typically transmitted by insects and ticks - They are classified as beta-
b b b b b b b b b b b b b



proteobacteria