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Types of Ion Channels

The sodium-po...

Question

The sodium-potassium pump functions to pump ions into the cells and ions out of the cell.

A

sodium

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B

iodide

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C

chloride

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D

potassium

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Solution

The correct option is D potassium
The sodium-potassium pump moves sodium ions out of the cell and potassium ions into the cell. This pump is powered by ATP. For each ATP that is broken down, 3 sodium ions move out and 2 potassium ions move in.

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Similar questions

Q. The sodium-potassium pump functions to pump ions into the cells and ions out of the cell.

Q. Sodium-potassium pump requires to pump out the sodium ions against the concentration gradient.

Q. Sodium-potassium pump across the resting membrane transports ____

N a

ions outside and ____

K

ions into the cell.

Q. The sodium- potassium requires energy to move sodium and potassium ions across the cell membrane. Which of these describes the process used by the sodium-potassium pump?

Q. According to

H^{+} - K^{+}

exchange pump mechanism of stomatal movement
I.

K^{+}

ions accumulate in guard cells during the day.
II.

H^{+}

ions are pumped out from guard cells and

K^{+}

ions are pumped into guard cells.
III. Water potential of guard cells decreases with the accumulation of

K^{+}

ions together with

C l^{-}

and organic acid ions.
IV. Water enters into guard cells from epidermal and mesophyll cells due to decreased water potential of guard cells.

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