Question

3 multiple choice 1 point the net movement of molecules or ions from a low concentration to a higher concentration is called exocytosis active transport diffusion facilitated diffusion osmosis

Explanation:

• Exocytosis is the process of vesicles fusing with the plasma membrane to release contents outside the cell, not related to concentration gradient movement.
• Active transport is the movement of molecules/ions from low to high concentration, requiring energy (e.g., ATP), which matches the description.
• Diffusion is the movement from high to low concentration (passive, no energy needed).
• Facilitated diffusion is a type of passive transport (high to low concentration) with the help of transport proteins.
• Osmosis is the diffusion of water across a semipermeable membrane (high to low water concentration, or low to high solute concentration, but still passive and follows the concentration gradient of water).

Answer:

B. active transport