PLANTS
TRANSPORT IN PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Is an energy-dependent membrane transporter
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Is involved in passive transport of ions
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Transports ions along their concentration gradient
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Never shows saturation of transport
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Detailed explanation-1: -Moving sodium and potassium ions across the cell membrane is an active transport mechanism that requires ATP hydrolysis to provide the necessary energy.
Detailed explanation-2: -The Na+ K+ pump is an electrogenic transmembrane ATPase first discovered in 1957 and situated in the outer plasma membrane of the cells; on the cytosolic side. [1][2] The Na+ K+ ATPase pumps 3 Na+ out of the cell and 2K+ that into the cell, for every single ATP consumed.
Detailed explanation-3: -The sodium-potassium pump carries out a form of active transport-that is, its pumping of ions against their gradients requires the addition of energy from an outside source.
Detailed explanation-4: -also known as the Na+/K+ pump or Na+/K+-ATPase, this is a protein pump found in the cell membrane of neurons (and other animal cells). It acts to transport sodium and potassium ions across the cell membrane in a ratio of 3 sodium ions out for every 2 potassium ions brought in.