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CAMPBELL BIOLOGY TEST PREP CHAPTERS 6 & 7 QUESTIONS AND ANSWERS
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CAMPBELL BIOLOGY TEST PREP CHAPTERS 6 & 7 QUESTIONS AND ANSWERS
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CAMPBELL BIOLOGY TEST PREPCHAPTERS 6 & 7 QUESTIONS AND
ANSWERS
When biologists wish to study the internal ultrastructure of cells, they can achieve the
finest resolution by using - Answer-Answer: C
A: a phase-contrast light microscope.
B: a scanning electron microscope.
C: a transmission electronic microscope.
D: a confocal fluorescence microscope.
E: a super-resolution fluorescence microscope.
Which of the following statements correctly describes some aspect of protein secretion
from prokaryotic cells? - Answer-Answer: C
A: Prokaryotes are unlikely to be able to secrete proteins because they lack an
endomembrane system.
B: The mechanism of protein secretion in prokaryotes is probably the same as that in
eukaryotes.
C: Proteins that are secreted by prokaryotes are synthesized on ribosomes that are
bound to the cytoplasmic surface of the plasma membrane.
D: In prokaryotes, the ribosomes that are used for the synthesis of secreted proteins are
located outside of the cell.
E: Prokaryotes contain large pores in their plasma membrane that permit the movement
of proteins out of the cell.
The Golgi apparatus has a polarity or sidedness to its structure and function. Which of
the following statements correctly describes this polarity? - Answer-Answer: E
A: Transport vesicles fuse with one side of the Golgi and leave from the opposite side.
B: Proteins in the membrane of the Golgi may be sorted and modified as they move
from one side of the Golgi to the other.
C: Lipids in the membrane of the Golgi may be sorted and modified as they move from
one side of the Golgi to the other.
D: Soluble proteins in the cisternae (interior) of the Golgi may be sorted and modified as
they move from one side of the Golgi to the other.
E: All of the above correctly describe polar characteristics of the Golgi function.
ECM proteins are made by ribosomes in which part of a eukaryotic cell? - Answer-
Answer: E
A: mitochondria
B: cytoplasm
C: nuclear envelope
D: Golgi apparatus
E: rough ER
, Which structure is the site of the synthesis of proteins that may be exported from the
cell? - Answer-Answer: A
A: rough ER
B: lysosomes
C: plasmodesmata
D: Golgi vesicles
E: free cytoplasmic ribosomes
Vinblastine, a drug that inhibits microtubule polymerization, is used to treat some forms
of cancer. Cancer cells given vinblastine would be unable to - Answer-Answer: C
A: form cleavage furrows during cell division.
B: migrate by amoeboid movement.
C: separate chromosomes during cell division.
D: extend pseudopods.
E: maintain the shape of the nucleus.
Which of the following is present in a prokaryotic cell? - Answer-Answer: B
A: mitochondrion
B: ribosome
C: nuclear envelope
D: chloroplast
E: ER
In a plant cell, DNA may be found - Answer-Answer: D
A: only in the nucleus.
B: only in the nucleus and mitochondria.
C: only in the nucleus and chloroplasts.
D: in the nucleus, mitochondria, and chloroplasts.
E: in the nucleus, mitochondria, chloroplasts, and peroxisomes.
Which animal cell organelle contains enzymes that transfer hydrogen from various
substrates to oxygen? - Answer-Answer: E
A: lysosome
B: vacuole
C: mitochondrion
D: Golgi apparatus
E: peroxisome
Which of the following produces and modifies polysaccharides that will be secreted? -
Answer-Answer: D
A: lysosome
B: vacuole
C: mitochondrion
D: Golgi apparatus
E: peroxisome
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