A transport protein requires ATP to pump sodium ions across a membrane. This is a case of . a. p

step 1 Hello everyone. We're going to talk about transport within SELTS. So the first type of transport

A transport protein requires ATP to pump sodium ions across...

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Key Concepts

Active Transport

Active transport is a cellular process in which molecules or ions are moved across a cell membrane against their concentration gradient with the expenditure of energy. This mechanism is essential for maintaining specific concentrations of substances within the cell, performing functions such as nutrient uptake and waste removal that cannot be achieved through passive means alone.

ATP

ATP, or adenosine triphosphate, is the primary energy carrier in cells. In processes like active transport, ATP provides the necessary energy by undergoing hydrolysis, which releases energy that can then be used to drive the movement of ions or molecules against their concentration gradients.

Transport Proteins

Transport proteins are integral membrane proteins that facilitate the movement of substances across the cell membrane. They play a crucial role in active transport by harnessing energy (often from ATP) to move ions or molecules across the membrane, ensuring that cellular processes dependent on specific substance concentrations can occur efficiently.

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