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What are the special structures in the cell membrane that allow water and sugar pass through it made of?
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.
What is the organelle that regulates what enters or exits the cell is called?
its the cell membrane - not to be confused with the cell wall
What are openings in the cell membrane called?
Protein channels
What structure regulates the movement of water into and out f a cell?
Cell membrane, specifically aquaporin proteins, regulate the movement of water into and out of the cell through a process called osmosis. These proteins create channels that selectively allow water molecules to pass through, maintaining proper water balance in the cell.
In the membrane of a cell channels serve as what?
Channels in the cell membrane serve as passageways for the selective transport of ions and molecules into and out of the cell. They help maintain the cell's internal environment by controlling the flow of substances across the membrane.
Ion channel that are always open are called?
Ion channels that are always open are called leak channels. They allow a continuous flow of ions across the cell membrane, helping to maintain the resting membrane potential of the cell.
Passages that permit a cell membrane to be permeable as needed are called?
Passages that permit a cell membrane to be permeable as needed are called ion channels. These channels allow ions such as sodium, potassium, and calcium to flow in and out of the cell, regulating the cell's electrical and chemical properties.
How do liquids go through cell membrane?
Fluid moves into the cell through a passive process known as diffusion. Osmosis is the special name given to the diffusion of water across the semi-permeable membrane of the cell.
Movement of water across a cell membrane?
Water can move across a cell membrane through a process called osmosis, which is the movement of water from an area of low solute concentration to an area of high solute concentration. This movement helps maintain balance within the cell and is crucial for maintaining cell shape and function.
What is the transport of water across the cell membrane called?
Movement of water across a membrane is called OSMOSIS.
What are other names for a pore in a cell membrane?
Depends on what the pore does. If they are channels - they are called Channels. Voltage gated / ligand activated channels. If they are to communicate with neighbouring cells - they are called gap junctions.
What gives water the ability to cross the hydrophobic region of a cell membrane when other small polar molecules and ions cannot?
Water is able to cross the hydrophobic region of a cell membrane through specialized protein channels called aquaporins. These channels facilitate the movement of water molecules while preventing the passage of other small polar molecules and ions. Aquaporins selectively allow water to pass through the membrane, maintaining cell homeostasis by regulating water balance.
