The nephron reabsorbs glucose through a sodium / glucose transporter. What sort of transporter is it?a)Protein channelb)Antiporterc)Sodium pumpd)ymporterCorrect answer is option 'D'. Can you explain this answer?

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The nephron reabsorbs glucose through a sodium / glucose transporter. What sort of transporter is it?

a)
Protein channel
b)
Antiporter
c)
Sodium pump
d)
ymporter

Correct answer is option 'D'. Can you explain this answer?

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The nephron reabsorbs glucose through a sodium / glucose transporter. ...

The sodium/glucose transporter found in the nephron is a symporter. A symporter is a type of transporter protein that simultaneously moves two different molecules across a cell membrane in the same direction. In this case, the transporter moves both sodium ions and glucose molecules from the tubular fluid in the nephron into the cells of the renal tubules. This process is known as co-transport or secondary active transport, as it utilizes the energy stored in the electrochemical gradient of sodium ions to drive the uphill movement of glucose against its concentration gradient. The symporter binds both sodium and glucose on one side of the membrane and undergoes a conformational change to transport them together into the cell. This allows for the efficient reabsorption of glucose from the filtrate back into the bloodstream, helping to maintain glucose homeostasis in the body.

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