Questions and Correct Answers.
Graded A
______ are microorganisms that are not included in phylogenetic trees
because they are acellular. - ANSviruses
__________ are organisms without membrane-bound nuclei. -
ANSprokaryotes
13. Which type of cytoskeletal fiber is important in the formation of the
nuclear lamina?
a. microfilaments
b. intermediate filaments
c. microtubules
d. fibronectin - ANSB
A ________ is a disease-causing microorganism. - ANSpathogen
A microscope that uses multiple lenses is called a _________ microscope.
- ANScompound
a specimen that is being viewed with a standard ocular lens and a 40⨯
objective lens? - ANS400x
1
, Bacteria have 80S ribosomes each composed of a 60S large subunit and a
40S small subunit. - ANSfalse
Bacterial cell walls are primarily composed of which of the following?
a. phospholipid
b. protein
c. carbohydrate
d. peptidoglycan - ANSD
Chromophores that absorb and then emit light are called __________. -
ANSflurochromes
Exposure to air is necessary for microbial growth. - ANSfalse
In a(n) _______ microscope, a probe located just above the specimen
moves up and down in response to forces
between the atoms and the tip of the probe. - ANSatomic
In binomial nomenclature, an organism's scientific name includes its
________ and __________. - ANSgenus and species
John Snow is known as the Father of _____________. - ANSepidemiology
Microfilaments are composed of _____________ monomers. - ANSactin
Mitochondria in eukaryotic cells contain ribosomes that are structurally
similar to those found in prokaryotic cells - ANStrue
2