Facilitated diffusion involves Large molecules moving from high to low concentration, using energy and proteins
Small molecules moving from high to low concentration, using energy and proteins
Small molecules moving from low to high concentration, using proteins but no energy
Large molecules moving from high to low concentration, using proteins, but no energy

Large molecules moving from high to low concentration, using proteins, but no energy.

Explanation:

Facilitated diffusion is a type of passive transport. Passive transport, unlike active transport doesn't require any energy, but it does require channel proteins, unlike diffusion.

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey

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