BIO 201 Exam 2 comprehensive
Questions and Answers with Verified
Solutions
Question 1:
Which of the following statements is NOT CONSISTENT with Cell
Theory? a) Bacteria and Eukaryotic cells divide using different
mechanisms b) Archaea and Bacteria are structurally similar, but Archaea
are genetically more similar to Eukaryotes c) Viruses are living organisms
d) All of the above
Answer:
c
Question 2:
Which of the following does NOT specifically support of the
endosymbiotic theory for the origins of mitochondria and chloroplasts? a)
Mitochondria and chloroplasts are very common b) Mitochondria and
chloroplasts have double membranes c) Mitochondria and chloroplasts
have circular genomes d) Mitochondria and chloroplasts divide by fission
independently of the cell
Answer:
a
,Question 3:
Which of the following SUPPORTS the endosymbiotic theory for the
origins of mitochondria and chloroplasts? a) Mitochondria and
chloroplasts are genetically similar to bacteria b) Mitochondria and
chloroplasts have double membranes
Answer:
d
Question 4:
In the original Pulse-Chase experiment of Palade and colleagues, what
can we conclude from the fact that radioactivity in the Golgi complex is
initially very low, increases to its highest levels in 15 minutes, and then
the radioactivity in Golgi decreases again to near zero by two hours? a) It
takes about fifteen minutes to synthesize a protein b) Proteins are not
made in the Golgi complex, but are transported in after they are
synthesized and then eventually exit c) Proteins are made in the Golgi
complex d) Proteins are secreted e) Proteins are degraded within two
hours
Answer:
b
Question 5:
Loss of peptidoglycan, combined with increased cell size during evolution
of eukaryotes led to a less stable cell. Which of the following evolutionary
adaptations compensated for this decreased structural stability? a)
Cytoskeleton b) Nuclei c) Mitochondria and chroroplasts d) Double
stranded DNA
Answer:
a
, Question 6:
a
Answer:
Question 7:
Bacteria are approximately _____ in diameter; eukaryotic cells are
typically at least _____ times this size. a) 1µm; 10x b) 10 µm; 100x c) 100
µm; 10x d) 100µm; 100x
Answer:
a
Question 8:
When doing differential centrifugation, microsomes pellet to the bottom of
the tube at faster spin speeds than lysosomes. This indicates that
microsomes are ___________ than lysosomes. a) Larger b) Smaller c)
Heavier d) Lighter
Answer:
d
Question 9:
Based on their differences in cell structure, which of the following would
you be more
Answer:
a
Questions and Answers with Verified
Solutions
Question 1:
Which of the following statements is NOT CONSISTENT with Cell
Theory? a) Bacteria and Eukaryotic cells divide using different
mechanisms b) Archaea and Bacteria are structurally similar, but Archaea
are genetically more similar to Eukaryotes c) Viruses are living organisms
d) All of the above
Answer:
c
Question 2:
Which of the following does NOT specifically support of the
endosymbiotic theory for the origins of mitochondria and chloroplasts? a)
Mitochondria and chloroplasts are very common b) Mitochondria and
chloroplasts have double membranes c) Mitochondria and chloroplasts
have circular genomes d) Mitochondria and chloroplasts divide by fission
independently of the cell
Answer:
a
,Question 3:
Which of the following SUPPORTS the endosymbiotic theory for the
origins of mitochondria and chloroplasts? a) Mitochondria and
chloroplasts are genetically similar to bacteria b) Mitochondria and
chloroplasts have double membranes
Answer:
d
Question 4:
In the original Pulse-Chase experiment of Palade and colleagues, what
can we conclude from the fact that radioactivity in the Golgi complex is
initially very low, increases to its highest levels in 15 minutes, and then
the radioactivity in Golgi decreases again to near zero by two hours? a) It
takes about fifteen minutes to synthesize a protein b) Proteins are not
made in the Golgi complex, but are transported in after they are
synthesized and then eventually exit c) Proteins are made in the Golgi
complex d) Proteins are secreted e) Proteins are degraded within two
hours
Answer:
b
Question 5:
Loss of peptidoglycan, combined with increased cell size during evolution
of eukaryotes led to a less stable cell. Which of the following evolutionary
adaptations compensated for this decreased structural stability? a)
Cytoskeleton b) Nuclei c) Mitochondria and chroroplasts d) Double
stranded DNA
Answer:
a
, Question 6:
a
Answer:
Question 7:
Bacteria are approximately _____ in diameter; eukaryotic cells are
typically at least _____ times this size. a) 1µm; 10x b) 10 µm; 100x c) 100
µm; 10x d) 100µm; 100x
Answer:
a
Question 8:
When doing differential centrifugation, microsomes pellet to the bottom of
the tube at faster spin speeds than lysosomes. This indicates that
microsomes are ___________ than lysosomes. a) Larger b) Smaller c)
Heavier d) Lighter
Answer:
d
Question 9:
Based on their differences in cell structure, which of the following would
you be more
Answer:
a
