When a human white blood cell “consumes” a red blood cell (erythrocyte), this process is called: B. receptor-mediated endocytosis C. pinocytosis D. “cell-drinking” E. exocytosis F.phagocytosis
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When a human white blood cell “consumes” a red blood cell (erythrocyte), this process is called:
B. receptor-mediated endocytosis
C. pinocytosis
D. “cell-drinking”
E. exocytosis
F.phagocytosis
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- When a human white blood cell “consumes” a red blood cell (erythrocyte), this process is called: phagocytosis receptor-mediated endocytosis pinocytosis “cell-drinking” exocytosisIf a membrane protein in an intact erythrocyte reacts with a membrane-impermeable reagent, what can you conclude about the protein? A. It is a transmembrane protein. B. It is a peripheral membrane protein. C. At least one domain of the protein is located on the outer face of the membrane. D. It is not a plasma membrane protein.Erythrocyte glucose transporter is an example ofa) Ion driven active transportb) Facilitated diffusionc) Active transportd) Simple diffusion
- Which of the following is incorrect about membrane transport systems? a. Glucose transport in red blood cells is a uniport system b. The Na+/K+ ATPase is an antiport system c. The H+/K+ ATPase is an active transport system d. The chloride-bicarbonate exchanger in erythrocytes is a uniport systemThe cells lining the small intestine rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm. Using this information which transport mechanism is most probably functioning in the intestinal cells? a) simple diffusion b) phagocytosis c) active transport pump d) exocytosis e) Facilitated diffusionWhen testing tonicity of red blood cells, if the solution became transparent after adding blood cell, you could assume a). the solution was hypertonic and the cells had shrunk. b). the solution was isotonic and the cells had burst. c). the solution was hypenonic and the cells remained intact. d). the solution was hypotonic and the cells had burst.
- In the concept of cell physiology , differentiate white blood cells from red blood cells interms of their membrane-bound organelles.Cells specialized for absorption of matter from the ECF are likely to show an abundance of:- a. lysosomes. d. secretory vesicles. b. microvilli. e. ribosomes. c. mitochondriaWhich of these statements about carrier-mediated facilitated diffusion is true? a. It uses cellular ATP. b. It is used for cellular uptake of blood glucose. c. It is a form of active transport. d. None of these are true.
- Plasma membranes are selectively permeable. This means: A. cholesterol cannot enter B. anything can pass in and out C.the membrane regulates the passage of the material in and out of the cell D. glucose cannot enter the cellCompare channels and transporters. Channels are __________, and transporters are __________. Select one: a. slower, more selective b. Less selective, slower c. faster, less selective d. slower, less selective e. more selective, fasterActive transport must function continuously because_______. a. plasma membranes wear out b. cells must be in constant motion c. facilitated transport opposes active transport d. diffusion is constantly moving the solutes in the other direction
