How does transport of substances occur across the plasma membrane?
Answers
Answer:
Endoplasmic reticulum are the substance which transport across the plama membrane
Answer:
Channel and Carrier proteins.......
Explanation:
Channel proteins facilitate the transport of substances across a cell membrane. They do this through the process of either facilitated diffusion or active transport depending on the concentration gradient, or the difference in the concentration of substances inside and outside the cell membrane.
Carrier Proteins
Unlike channel proteins which only transport substances through membranes passively, carrier proteins can transport ions and molecules either passively through facilitated diffusion, or via secondary active transport. ... These carrier proteins have receptors that bind to a specific molecule (substrate) needing transport.