Which of the following characterizes the sodium-potassium pump?
a) sodium ions are pumped out of a cell against their gradient.
b) potassium ions are pumped into a cell against their gradient.
c) the pump protein undergoes a conformational change.
d) only a and b are correct.
e) a, b, and c are all correct.

When the water vapor cools it condenses select a number that represents his process on the

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: