The MDR ABC transporter functions in a number of animal cells to transport
a. glucose into cells.
b. ions into cells.
c. poisons and drugs out of cells.
d. amino acids across epithelia.
Ans: c. poisons and drugs out of cells.
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Due to a chemical equilibrium, a syntrophic relationship can be disrupted if the product from the first partner's metabolism is removed too quickly
Indicate whether the statement is true or false.
Muscle fibers generate maximum force:
A. at intermediate lengths. B. when pulled to long lengths before contraction. C. when contracting at short lengths. D. when the myosin filaments contact the Z discs. E. when the overlap between actin and myosin is minimal.
Extra fluid that leaks out of the capillary bed
enters
a. the surrounding cells. b. the lymphatic system. c. the venules. d. the capillary again. e. the adjoining arterioles
During DNA replication, DNA pol III synthesizes the lagging strand in segments, called
A. replication fragments. B. repeating primers. C. Okazaki fragments. D. Chargaff's segments. E. replisomes.