PROTEIN!!!!!!!!!!!!!!!!!!!!!!!!!
Membrane transporter.
PROTEIN!!!!!!!!!!!!!!!!!!!!!!!!!
PROTEIN!!!!!!!!!!!!!!!!!!!!!!!!!
These special structures are called protein gates or protein channels. Water is able to diffuse through the cell membrane since it is a small molecule. However, there are channels called aquaporins that allow water to enter the cell. A glucose molecule cannot just diffuse into a cell. There are glucose channels on the surface of the cell membrane that bind glucose molecules and allow them to enter the cell.
The special structures in the cell membrane that allow materials like water and sugar to pass through are proteins called transport proteins. These proteins help facilitate the movement of specific molecules across the membrane by acting as channels or carriers. They play a crucial role in regulating the flow of substances in and out of the cell.
Yes, how else could the cell live. Cell membranes have structures (holes) in them to allow things to move in and out. These holes are special structures in the membrane and they "control" what goes across the membrane. I have made a link below to a diagram of the cell membrane to show some of these structures.
Lenticels allow gases to pass through them. Hope this helped. Gigi
proteins
Lenticels allow gases to pass through them. Hope this helped. Gigi
Nuclear pore complexes (NPCs) are structures that span the nuclear membrane and allow the passage of molecules, including genetic material such as DNA and RNA, in and out of the nucleus. NPCs regulate the transport of these molecules by recognizing specific signals on the molecules themselves.
The cell membrane is the special structure that allows materials to pass through, utilizing channels and transport proteins to facilitate the movement of water and sugars in and out of the cell. This selective permeability helps regulate the internal environment of the cell and maintain homeostasis.
Special doorways in the cell membrane are made of proteins called ion channels or transporters. These proteins allow specific ions or molecules to pass through the cell membrane, regulating the movement of substances in and out of the cell.