Question

moving molecules from low to high concentration requires energy. what is this process called? osmosis active transport

Explanation:

To determine the process, we analyze the options:

• Osmosis: It is the movement of water molecules from high to low concentration (along the concentration gradient) and does not require energy (passive transport).
• Active transport: This process moves molecules (or ions) from a region of low concentration to high concentration (against the concentration gradient) and requires energy (usually from ATP). The problem states the movement is from low to high concentration and requires energy, so this matches.

Answer:

Active transport