The na+-k+ atpase is a countertransport antiport carrier, which always requires energy.

Answer;

-The above statement is true

The Na+-K ATPase is a counter-transport antiport carrier, which always requires energy.

Explanation;

-The sodium-potassium (Na+-K) pump transports both sodium and potassium UP their concentration gradients in a process called active transport. Active transport involves the transport of Na+ from a place of low concentration to a place of higher concentration.

-Antiport is an Integral protein which moves two or more molecule types across the membrane in the opposite direction. while a symport is an Integral protein which moves two or more molecule types across the membrane in the same direction.

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.