Which of the following types of transport require ATP?

Explanation

Among the given options, the types of transport that require ATP is: The Na+/K+ pump releasing 3 sodium ions outside of the cell and 2 potassium ions into the cell: The Na+/K+ pump is an example of active transport that requires ATP. It transports ions against their concentration gradients, moving sodium ions out of the cell and potassium ions into the cell. The remaining options do not involve ATP-dependent processes: -Glucose moving into the cell, down its concentration gradient, through a channel: This type of transport does not require ATP. It is a form of passive transport called facilitated diffusion, where glucose molecules move down their concentration gradient with the assistance of transport proteins. - Sodium ions moving from an area of high concentration to an area of low concentration through a voltage-gated sodium channel: This is an example of passive transport known as facilitated diffusion. The voltage-gated sodium channel allows the movement of sodium ions down their concentration gradient without the requirement of ATP. - Water moving from an area of low solute concentration to an area of high solute concentration: This process is called osmosis and does not directly involve ATP. Osmosis is the passive movement of water molecules across a semipermeable membrane in response to differences in solute concentrations. - Water moving down its concentration gradient through an aquaporin: Aquaporins are specialized water channels that facilitate the passive movement of water across cell membranes. This process, like osmosis, does not require ATP.