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Transprot or exchange of ions through the lipid bilayer is done by active transport in which energy is utilized in the form of ATP or in the form of proton motive force. It is usually done as symport i.e. molecules or ions move in same direction or as antiport inwhich ions move in opposite direction.
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What is cell membrane permeability?
It is the ability of the membrane to allow ions and/or particles to cross.
What receptor has a ligand that can cross the cell membrane that binds?
Intracellular
What cell organelles is made mostly of fats and proteins and controls substances moving in and out of the cell?
The cell membrane is made mostly of fats and proteins, and it controls the movement of substances in and out of the cell by acting as a selectively permeable barrier. It regulates the passage of ions, molecules, and other substances to maintain the internal environment of the cell.
What is the process where in the diffusion of water cross a cell membrane?
Osmosis
What are two structures that a material would have to cross to enter the cytoplasm of a plant cell?
In order to enter the cytoplasm of a plant cell, a material would have to cross the plasma membrane and then the cell wall. The plasma membrane regulates what enters and exits the cell, while the cell wall provides structural support and protection.
Can small hydrophobic molecules cross the cell membrane?
Yes, small hydrophobic molecules can cross the cell membrane.
Do fats form part of the cell membrane?
Yes
Can nonpolar molecules cross the cell membrane?
Yes, nonpolar molecules can cross the cell membrane through simple diffusion.
What ions are positively charged and can cross back and forth across neuron and cell membrane?
There are two ions that can cross the cell membrane. The positively charged sodium and potassium ions can cross back and forth across the neuron cell membrane.
Can polar molecules cross the cell membrane?
Yes, polar molecules can cross the cell membrane through facilitated diffusion or active transport.
What is one major roll of fats in the cell membrane?
One major role of fats in the cell membrane is to provide structure and stability. Fats, specifically phospholipids, make up the lipid bilayer of the cell membrane, creating a barrier that controls the movement of substances in and out of the cell. Additionally, fats in the cell membrane can also serve as energy storage molecules.
What is cell membrane permeability?
It is the ability of the membrane to allow ions and/or particles to cross.
Can small polar molecules cross the cell membrane?
Yes, small polar molecules can cross the cell membrane through a process called passive diffusion.
What is the purpose for fats?
Fats are a very essential building block of the body. Every cell in your body needs fats in order to produce a cell membrane. Without it your cells would collapse.
Where are oils and fats stored in a palisade cell?
Palisade cells are present in the leaves of many plants. In palisade cells, oils and fats are stored in the cell membrane.
What receptor has a ligand that can cross the cell membrane that binds?
Intracellular
What cell organelles is made mostly of fats and proteins and controls substances moving in and out of the cell?
The cell membrane is made mostly of fats and proteins, and it controls the movement of substances in and out of the cell by acting as a selectively permeable barrier. It regulates the passage of ions, molecules, and other substances to maintain the internal environment of the cell.
