Respuesta :
Explanation:
Active Transport is most like the situation described.
Active transport is a mediated process that requires the use of specialized membrane proteins these proteins require energy in the form of avenues and triphosphate or ATP in order to facilitate necessary conformational changes to the large protein molecules.
Transport proteins spanning the plasma membrane facilitate the movement of ions and other complex, polar molecules which are typically prevented from moving across the membrane from the extracellular or intracellular space.
Transmembrane proteins are embedded within the membrane from the extracellular fluid to the cytoplasm, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) which function as cell surface markers. Transport proteins are transmembrane proteins involved in moving molecules across the membrane.
Carrier proteins bind specifically bind to molecules and move them across or against concentration gradients; this is like fighting against the waves to make progress. Unlike facilitated diffusion, carrier proteins directly or indirectly use energy in the form of ATP and modify solute specific regions, that aid in regulating ion exchange, through the hydrophobic layer of the plasma membrane- this is called active transport. This makes entering the cell (like the ocean) easier, kind of like providing a special gateway for access.
e.g. Na+/K+transported by the enzyme ATPase
- Sodium ions inside the cell are bound to the transport proteins
- ATP is reduced to ADP when a phosphate group is donated to the carrier protein which changes its shape
- The proteins chance is it shape releasing sodium ions into the cells exterior
- Two ions of potassium bind to the protein at the exterior of the cell for the phosphate group is released from the protein which changes shape to release the potassium ions into the cell’s interior
- this type of carrier protein is called a sodium-potassium pump
Learn more about membrane components at brainly.com/question/1971706
Learn more about plasma membrane transport at brainly.com/question/11410881
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