CAMPBELL BIOLOGY TEST PREP CHAPTERS 6 & 7 EXAM QUESTIONS WELL ANSWERED
When biologists wish to study the internal ultrastructure of cells, they can achieve the finest
resolution by using - Answers 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? - Answers 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? - Answers 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? - Answers 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? -
Answers 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 - Answers 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? - Answers Answer: B
A: mitochondrion
B: ribosome
C: nuclear envelope
D: chloroplast
E: ER
When biologists wish to study the internal ultrastructure of cells, they can achieve the finest
resolution by using - Answers 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? - Answers 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? - Answers 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? - Answers 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? -
Answers 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 - Answers 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? - Answers Answer: B
A: mitochondrion
B: ribosome
C: nuclear envelope
D: chloroplast
E: ER
