BIOL 210 EXAM VERIFIED QUESTIONS AND
ANSWERS GRADED A+|BRAND NEW!!
__________ have evolved to survive multiple extreme
environments.
a. Psychrophiles d. Thermophiles
b. Extremophiles e. Acidophiles
c. Halophiles - ANSWER-B
The membrane needs to remain __________ so that it
can expand as cells grow larger and so proteins needed
for solute transport can be inserted into the membrane.
a. rigid d. hypertonic
b. warm e. polarized
,c. fluid - ANSWER-C
An organism that requires full oxygen tensions of 21% for
growth is:
a. aerobic d. anaerobic
b. microaerophilic e. facultative
c. aerotolerant - ANSWER-A
Which best describes microaerophiles?
a. They require atmospheric oxygen levels to grow.
b. They cannot grow in the presence of oxygen.
c. They will use oxygen if it is present, but can grow even if
oxygen is not present.
d. They require a small amount of oxygen.
, e. They can't use oxygen to grow, but oxygen won't kill
them. - ANSWER-D
An organism that grows at the bottom of a tube of
thioglycolate broth medium is probably a(n):
a. strict aerobe d. microaerophile
b. facultative anaerobe e. strict anaerobe
c. aerotolerant anaerobe - ANSWER-E
An organism that grows at the top of a tube of
thioglycolate broth medium is probably a(n):
a. strict aerobe d. microaerophile
b. facultative anaerobe e. strict anaerobe
c. aerotolerant anaerobe - ANSWER-A
ANSWERS GRADED A+|BRAND NEW!!
__________ have evolved to survive multiple extreme
environments.
a. Psychrophiles d. Thermophiles
b. Extremophiles e. Acidophiles
c. Halophiles - ANSWER-B
The membrane needs to remain __________ so that it
can expand as cells grow larger and so proteins needed
for solute transport can be inserted into the membrane.
a. rigid d. hypertonic
b. warm e. polarized
,c. fluid - ANSWER-C
An organism that requires full oxygen tensions of 21% for
growth is:
a. aerobic d. anaerobic
b. microaerophilic e. facultative
c. aerotolerant - ANSWER-A
Which best describes microaerophiles?
a. They require atmospheric oxygen levels to grow.
b. They cannot grow in the presence of oxygen.
c. They will use oxygen if it is present, but can grow even if
oxygen is not present.
d. They require a small amount of oxygen.
, e. They can't use oxygen to grow, but oxygen won't kill
them. - ANSWER-D
An organism that grows at the bottom of a tube of
thioglycolate broth medium is probably a(n):
a. strict aerobe d. microaerophile
b. facultative anaerobe e. strict anaerobe
c. aerotolerant anaerobe - ANSWER-E
An organism that grows at the top of a tube of
thioglycolate broth medium is probably a(n):
a. strict aerobe d. microaerophile
b. facultative anaerobe e. strict anaerobe
c. aerotolerant anaerobe - ANSWER-A
