0
What else can I help you with?
Why can't sodium ions cross the membrane without the use of a protein channel?
Sodium ions cannot cross the membrane without the use of a protein channel because they are charged particles and the lipid bilayer of the cell membrane is hydrophobic, which repels ions. The protein channels, specifically ion channels, provide a hydrophilic pathway that allows sodium ions to pass through the membrane. Additionally, the selective permeability of these channels ensures that only specific ions can move across the membrane, maintaining the cell's electrochemical gradient.
What are openings in the cell membrane called?
Protein channels
What happens if a molecule is too large to go through a membrane?
The molecule will be transported across the membrane by way of a transport protein or protein channel.
How do solute molecules pass through the membrane?
The solute molecule, when passing through the membrane passively using a carrier protein, is called the substrate. The solute, or substrate will bind to the carrier protein from the outside, the carrier protein changes conformation, and the substrate is exposed to the inside of the membrane.
When a hormone molecule binds to a specific protein on the plasma membrane the protein it binds to is called?
... a receptor protein.
What are openings in the cell membrane called?
Protein channels
What happens if a molecule is too large to go through a membrane?
The molecule will be transported across the membrane by way of a transport protein or protein channel.
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.
How do solute molecules pass through the membrane?
The solute molecule, when passing through the membrane passively using a carrier protein, is called the substrate. The solute, or substrate will bind to the carrier protein from the outside, the carrier protein changes conformation, and the substrate is exposed to the inside of the membrane.
What is the role of protein channels in the membrane?
it transport baceria to the water
What role is the protein channels in the membrane?
it transport baceria to the water
What is the role of protein channelsin the cell membrane?
Protein channels allow the cell membrane to transfer large molecules across it. Remember, diffusion only occurs with small molecules. Protein channels are a necessity to transfer larger molecules.
Protein channels that are sensitive to electricity are known as WHAT channels?
Protein channels that are sensitive to electricity are known as voltage-gated ion channels. These channels open and close in response to changes in the membrane potential, allowing specific ions to flow across the cell membrane and generate electrical signals.
Is a protein that forms an ion channel through a membrane is most likely to be a peripheral protein a trans membrane protein a phospholipid an enzyme or an entirely outside the phospholipid?
A protein that forms an ion channel through a membrane is most likely to be a transmembrane protein. Transmembrane proteins span the lipid bilayer, allowing them to create channels for ions to pass through the membrane. Peripheral proteins are typically found on the surface of the membrane and do not form channels.
When a hormone molecule binds to a specific protein on the plasma membrane the protein it binds to is called?
... a receptor protein.
What channel can help move things across the membrane?
Ion channels facilitate the movement of ions across the membrane. These protein channels create a passageway for specific ions to move down their concentration gradient, facilitating processes such as nerve signaling and muscle contractions.
Which type of transport occurs when a membrane protein binds to a molecule on one side of the membrane and then released it on the other side?
facilitated diffusion is the type of membrane that occurs in protein binds. This is when molecule goes to one side.Edit : fixed the wrong answer
