The Na+-K+ ATPase is also known as the Na+-K+ pump. It is responsible for maintaining the high extracellular sodium ion concentration and the high intracellular potassium ion concentration. What happens immediately after the pump hydrolyzes ATP?
(a) Na+ is bound
(b) ADP is bound
(c) the pump is phosphorylated
(d) the pump changes conformation
(c) The phosphorylation of the pump causes the conformational change, and it occurs after the binding of Na+.
You might also like to view...
Which of the following molecules demonstrate dual solubility characteristics?
a. sterols only b. proteins only c. phospholipids only d. sterols and phospholipids e. sterols, phospholipids, and proteins
Elephantiasis is caused by damage of valves that affect the flow of:
a. intestinal contents b. lymph c. blood d. urine e. cerebrospinal fluid
If a daughter expresses an X-linked recessive trait, she inherited the trait from ____.
A. her mother B. her father C. both parents D. neither parent E. her grandmother
Ribosomes are made up of which kind of nucleic acid?
A) mRNA B) tRNA C) rRNA D) DNA