Explain why facilitated diffusion may need to occur and in what direction the particles diffuse in. Identify the molecules that help in this process.

Why does facilitated diffusion happen:

~ It regulates what goes in and what goes out of the cell

~The cell membrane is permeable to only a select few types of molecules and the molecules that are allowed to move across the cell membrane must be non-polar molecules which are small in size

What direction the particles diffuse in:

~From one side of the membrane where the substrate concentration is high to the other side of the membrane where the concentration is lower

~Diffuses across membranes down the concentration gradient

The molecules that help in this process:

~carbohydrates, amino acids, nucleosides, and ions

Hope this helped you- have a good day bro cya)

the answer is c) abandoned properties that are contaminated with hazardous materials.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.