Vasopressin quickly increases the reabsorption of water by the collecting duct. This happens because
A) The cell transcribes and translates more aquaporins to be inserted in the membrane.
B) Preformed aquaporins are translocated to the membrane.
C) Phosphorylation of existing aquaporins increase their permeability.
D) All of the above are possible.
Answer: B
You might also like to view...
How many bones comprise the skull and its associated bones?
A) 8 B) 14 C) 22 D) 29 E) 54
The superior mesenteric ganglion receives preganglionic sympathetic neurons from the _______ segments of the spinal cord
A. T1-T4 B. T2-T6 C. T5-T9 D. T7-T9 E. T10-T12
One mechanism in the skin that prevents cells from becoming loose and separating is the presence of junctions called desmosomes.
a. true b. false
Each cone communicates with only one ganglion cell, while many rods communicate with one ganglion cell.
Answer the following statement true (T) or false (F)