Which one of these statements about the potassium channel is false? Ejection of

Question

Which one of these statements about the potassium channel is false?

Ejection of K+ on the exterior face of the membrane results from repulsion between desolvated K+ ions bound at adjacent sites in the pore.
K+ ions interact with carbonyl groups of the backbone of the peptide strands that are directed into the narrow part of the channel.
Na+ ions are too small to make the complete set of interactions with carbonyl groups in the pore, so they remain hydrated.
Hydrated K+ ions pass through the pore from a region of high concentration to one of low concentration, whereas Na+ ions are dehydrated and selectively retained in the pore.
It has a pore extending in from the cytoplasmic face of the cell membrane in which K+ ions retain their hydration shell.

Explanation / Answer

Ans : Hydrated K+ ions pass through the pore from a region of high concentration to one of low concentration, whereas Na+ ions are dehydrated and selectively retained in the pore.

Explanation : There is deal between sodium and potasium ions which is done by Na+K+ ATPase. The sodium-potassium pump moves 3 sodium ions out in response to 2 potassium ions in.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.