BIOLOGY EXAM 2 comprehensive
Questions and Answers with Verified
Solutions
Question 1:
A new protein with a molecular weight of 25,000 daltons is discovered
and found to reside only in the nucleus, For this to happen the protein
must
Answer:
be transported across the nuclear envelope
Question 2:
both prokaryotic and eukaryotic cells?
Answer:
Which figure correctly depicts the size ranges of
Question 3:
Members of the domains Bacteria and Archaea have all of the following
except: nuclei ribosomes DNA cell membranes cytoplasm
Answer:
nuclei
,Question 4:
Suppose you are observing both prokaryotic and eukaryotic cells, using
light microscopy. If you use the 10x objective to observe human cells with
a diameter of 80 um, you will likely need to use the ________ objective to
observe bacteria cells.
Answer:
100x
Question 5:
How do surface area-to-volume ratios compare for the cells listed in the
table, and which cell will have the most rapid transport of materials into it
interior? Assume the cells are spherical.
Answer:
The surface area-to-volume ratios in crease from C toB to A, with cell A
having the most rapid transport.
Question 6:
Which statement best evaluates the accuracy of the information as it is
shown in the table?
Answer:
The size of prokaryotes and eukaryotes needs to be switched
, Question 7:
While using electron microscopy to examine the cell membrane of a
bacterium, you have discovered the presence of a complex motor protein
assembly. You do not find any evidence of a proper flagellum. You can
conclude that the bacterium most likely has lost its ability to make
Answer:
flagellin
Question 8:
You can examine an unknown organism using freeze-fracture electron
microscopy and discover ribosomes in its cytoplasm. You also find that it
has inner membranes, but it is difficult to tell whether they are contagious
with the cell membrane or not. Which feature would allow you to classify
this organism as prokaryote?
Answer:
a capsule
Question 9:
Which type of microscopy has the highest resolution?
Answer:
freeze-fracture microscopy
Question 10:
How could you justify the claim that studying cell biology can be
considered the same thing as studying life?
Answer:
Cells function according to the same principles that govern the function of
all living things
Questions and Answers with Verified
Solutions
Question 1:
A new protein with a molecular weight of 25,000 daltons is discovered
and found to reside only in the nucleus, For this to happen the protein
must
Answer:
be transported across the nuclear envelope
Question 2:
both prokaryotic and eukaryotic cells?
Answer:
Which figure correctly depicts the size ranges of
Question 3:
Members of the domains Bacteria and Archaea have all of the following
except: nuclei ribosomes DNA cell membranes cytoplasm
Answer:
nuclei
,Question 4:
Suppose you are observing both prokaryotic and eukaryotic cells, using
light microscopy. If you use the 10x objective to observe human cells with
a diameter of 80 um, you will likely need to use the ________ objective to
observe bacteria cells.
Answer:
100x
Question 5:
How do surface area-to-volume ratios compare for the cells listed in the
table, and which cell will have the most rapid transport of materials into it
interior? Assume the cells are spherical.
Answer:
The surface area-to-volume ratios in crease from C toB to A, with cell A
having the most rapid transport.
Question 6:
Which statement best evaluates the accuracy of the information as it is
shown in the table?
Answer:
The size of prokaryotes and eukaryotes needs to be switched
, Question 7:
While using electron microscopy to examine the cell membrane of a
bacterium, you have discovered the presence of a complex motor protein
assembly. You do not find any evidence of a proper flagellum. You can
conclude that the bacterium most likely has lost its ability to make
Answer:
flagellin
Question 8:
You can examine an unknown organism using freeze-fracture electron
microscopy and discover ribosomes in its cytoplasm. You also find that it
has inner membranes, but it is difficult to tell whether they are contagious
with the cell membrane or not. Which feature would allow you to classify
this organism as prokaryote?
Answer:
a capsule
Question 9:
Which type of microscopy has the highest resolution?
Answer:
freeze-fracture microscopy
Question 10:
How could you justify the claim that studying cell biology can be
considered the same thing as studying life?
Answer:
Cells function according to the same principles that govern the function of
all living things
