Receptor-mediated endocytosis
A. moves materials out of the cell.
B. is a type of passive transport.
C. exhibits specificity.
D. does not need ATP; the receptors supply the energy.
E. occurs if oxygen is available.
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Question 2) Which of the following cell organelles is CORRECTLY matched with its function?
A. ribosome - energy production
B. microtubules - cell support
C. mitochondria - protein synthesis
D. smooth ER - ATP production
E. nucleolus - contains the genetic material of the cell
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Question 3) Arrange the following events of exocytosis in the correct sequence:
(1) vesicle membrane fuses with plasma membrane
(2) secretory vesicles migrate to plasma membrane
(3) vesicle contents are expelled from cell
(4) secretions accumulate within secretory vesicles
A. 1, 4, 2, 3
B. 2, 1, 4, 3
C. 1, 2, 3, 4
D. 4, 2, 1, 3
E. 3, 1, 4, 2
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Question 4) Pinocytosis
A. forms vesicles only when large amounts of material are being transported.
B. does not require ATP.
C. is a form of exocytosis.
D. involves ingestion of liquids rather than particles.
E. does not require the formation of vesicles.
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Question 5) White blood cells engulf foreign particles by means of
A. macrocytosis.
B. phagocytosis.
C. exocytosis.
D. pinocytosis.
E. prestocytosis.
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Question 6) Endocytosis
A. is a process that requires a carrier molecule but does not use cellular energy.
B. moves material out of the cell.
C. ends cell functions.
D. is movement of water through a selectively permeable membrane.
E. is the bulk uptake of material through the plasma membrane by vesicle formation.
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Question 7) All of the following processes can move substances out of a cell EXCEPT
A. diffusion.
B. phagocytosis.
C. active transport.
D. osmosis.
E. exocytosis.
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Question 8) Certain cells in the liver ingest bacteria and debris from damaged cells by a process called
A. pinocytosis.
B. biocytosis.
C. exocytosis.
D. calmly regulated diffusion.
E. phagocytosis.
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Question 9) Cyanide stops the production of ATP. Which of the following processes would be affected?
A. active transport
B. filtration
C. facilitated diffusion
D. osmosis
E. simple diffusion
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Question 10) The sodium-potassium pump located in the plasma membrane
A. osmotically moves sodium into cells.
B. actively transports potassium into cells.
C. actively transports water out of cells.
D. moves chlorine out of cells.
E. actively transports sodium into cells.
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