Question

Choose the item in column 2 that best matches each item in column 1. You may use an item from column 2 more than once.

Requires direct ATP hydrolysis
Driven by an ion gradient
Transports glucose across membranes
Na⁺/glucose symport
Na⁺/K⁺ ATPase pump
1) Primary active transport
2) Primary and secondary active transport
3) Simple diffusion
4) Simple diffusion facilitated diffusion
5) Secondary active transport

Answer 1

Match the Na+/K+ ATPase pump with Primary Active Transport and Na+/glucose symport with Secondary Active Transport. Primary Active Transport requires ATP hydrolysis, while Secondary Active Transport relies on ion gradients established by Primary Active Transport.

Step-by-step explanation:

To match each item in column 1 with the correct transport mechanism in column 2

The Na⁺/K⁺ ATPase pump requires direct ATP hydrolysis to move ions against their concentration gradients, characteristic of primary active transport. The Na⁺/glucose symport utilizes the sodium gradient established by the ATPase pump to move glucose against its gradient, a process known as secondary active transport.

Secondary active transport is the process of moving two or more substances in the same direction across the cell membrane. One example of secondary active transport is the sodium-glucose symport, which uses the concentration gradient of sodium ions to transport glucose into the cell. This mechanism requires direct ATP hydrolysis by a sodium-potassium ATPase pump. Another example of active transport is the Na⁺/K⁺ ATPase pump, which uses the energy from ATP hydrolysis to actively transport sodium ions out of the cell and potassium ions into the cell.