Question

Which of the following are true about facilitated diffusion?

a.) energy is required
b.) there is no energy required
c.) require transport proteins
d.) moving against proton gradient
e.) moving with proton gradient

Answer 1

Facilitated diffusion is a passive transport method that requires no energy and uses transport proteins to move molecules with the concentration gradient.

Step-by-step explanation:

Regarding the question about which of the following are true about facilitated diffusion:

• (b) There is no energy required: Facilitated diffusion is a type of passive transport that does not require energy.
• (c) Require transport proteins: Facilitated diffusion utilizes transport proteins such as carrier proteins or channel proteins to help in the movement of substances across the cell membrane.
• (e) Moving with proton gradient: Facilitated diffusion involves the movement of molecules along their concentration gradient, which means from an area of high concentration to an area of low concentration.

Facilitated diffusion is distinct from active transport because it does not consume energy to move substances against a concentration gradient. Instead, facilitated diffusion leverages the inherent concentration gradients to help hydrophilic molecules pass through the cellular membrane.