The Na+/K+ pump ________.
A. contributes to the negative intracellular charge
B. establishes equal concentrations of sodium and potassium ions across the membrane
C. is an example of secondary active transport
D. exchanges three potassium for every 2 sodium molecules. As it stands, that answer is also correct.
Answer: A
You might also like to view...
A labradoodle is a example of a __________ breed
Fill in the blank(s) with correct word
If neuron Y's neurotransmitter is causing neuron X's membrane potential to decrease, then we would logically conclude that this neurotransmitter causes
a. increased PNa+ and PK+ b. increased PK+ or PCl- c. increased permeability to protein anions d. increased permeability to calcium ions e. None of the above
Which of the following statements concerning vitamin D is incorrect?
a. It can be synthesized by the skin on exposure to sunlight. b. It must be modified by alterations in the liver and kidneys before it is biologically active. c. It enhances the effect of calcitonin on bone. d. It increases Ca2+ absorption in the intestine. e. Its deficiency in children results in rickets.
When you touch your cheek bone, you are palpating your ________ bone.
Fill in the blank(s) with the appropriate word(s).