part a- active transport by the sodium-potassium pump complete the diagram below
ID: 91249 • Letter: P
Question
part a- active transport by the sodium-potassium pump complete the diagram below using the following steps Complete the diagram below using the following steps. 1. Drag the correct white label to the white target, indicating how many ions move through the pump and in which directons. 2. Drag the pink labels to the pink targets, indicating the relative concentrations of Na and K inside and outside the cell. 3. Drag the blue labels to the blue targets, indicating the relative charges inside and outside the cell outside cell Nat high excess low charge Na low 3 Na 2 K 2 Na 3 K K high sodium-potassium Na 2 K excess harge inside cell Type here to searchExplanation / Answer
Active transport means it utilizes the energy obtained from the hydrolysis of ATP to ADP for driving 3 sodium ions out of the cell and two potassium ions into the cell, thus creating a net positive charge outside the cell and net negative charge inside.The relative concentration of sodium is high outside and low inside the cell and relative concentration of potassium high inside and low outside.For e.g. in a nerve cell [Na+]outside is 150mmol and [Na+]inside is 15 ; [K+] outside - 5.5mmol and [K+]inside - 150 mmol with equillibrium potential for sodium +60mv(excess positive charge outside )and of potassium -70 mv (both calculated by Nernst equation)
So for Q no: 1; drag the white label (a) to target showing 3Na+ out of the cell(arrow head pointing upwards; towards outside cell) and 2K+ inside the cell.
Q: 2 ; Drag the pink label (b) to pink target [Na+] high, [K+] low and label (d) to[Na+] low, [K+]high.
Q:3;Drag blue label (c) to excess positive charge and
(e) to excess negative charge.
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