During the action of a sodium-potassium pump, 50 atp molecules were spent. predict how many sodium ions are transported across the cell membrane.
a. 50
b. 100
c. 150
d. 200

answer; /// i believe the correct answer is (reactants);

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.