When a nutrient moves,with the help of a carrier,from an area of higher solute concentration into an absorptive cell where the concentration is lower,this is called

Question

Quizplus · Accepted Answer

Facilitated diffusion involves the movement of a substance across a cell membrane through a carrier protein, from an area of higher concentration to an area of lower concentration, without the input of energy. It is a type of passive transport. In this case, a nutrient is moving from an area of higher solute concentration (outside the cell) into an absorptive cell where the concentration is lower, with the help of a carrier. This process is known as facilitated diffusion. Phagocytosis and active absorption involve the input of energy, while passive diffusion involves the movement of substances across a membrane without the help of a carrier. Therefore, the best choice of the given options is A) facilitated diffusion.

When a Nutrient Moves,with the Help of a Carrier,from an Area