0
What else can I help you with?
What type of molecules embebbed in the plasma membrane allows molecules to pass through the membrane by active or passive transport?
proteins
What does it mean if a cell membrane is selectively permiable?
The cell membrane only allows certain molecules through.
What allows and blocks materials from entering a cell?
The cell membrane allows small, uncharged molecules like oxygen and carbon dioxide to pass through freely. Larger molecules and charged ions require specific protein channels or transporters in the cell membrane to enter. The cell membrane blocks large molecules, charged ions, and hydrophilic molecules from freely crossing.
What part of the cell is referred to as to fluid mosaic model?
The cell membrane or plasma membrane is often referred to as the fluid mosaic model. This is because it is composed of a fluid lipid bilayer with embedded proteins, giving it a mosaic-like appearance. The fluidity allows for the movement and exchange of molecules within the membrane.
Cell membrane is semipermeable what doe that mean?
A semipermeable cell membrane allows certain molecules to pass through while blocking others. This selectivity is due to the presence of protein channels and transporters that control the movement of substances in and out of the cell. This property helps maintain the internal environment of the cell and regulates the exchange of nutrients and waste products.
What is membrane permeability?
Membrane permeability refers to the ability of molecules, substances, etc. to pass through the membrane. For example, the cell membrane is referred to as 'semi-permeable' because it allows some molecules (such as water) to enter, and stops other molecules (such as sodium ions) from passing through the membrane. If these want to get into the cell, they must then rely on proteins in the cell membrane to let them in.
What type of molecules embebbed in the plasma membrane allows molecules to pass through the membrane by active or passive transport?
proteins
What is meant by membrane is membrane?
a partially permeable membrane allows some molecules or ions to pass through it
What part of the cell membrane allows small molecules to pass through?
the cell membrane
What phrase best describes osmosis A process by which A the cytoplasm divides B DNA synthesizes C molecules distribute balanced by movement D selectively permeable membrane allows exchange through it?
D. Selectively permeable membrane allows exchange through it. Osmosis is the movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration.
What properties does a selective permeable membrane have?
the ability to allow materials to cross a membrane
What do you call a cell membrane that allows certain molecules to pass through?
A selectively permeable membrane.
What does it mean if a cell membrane is selectively permiable?
The cell membrane only allows certain molecules through.
Why can hydrophobic molecules cross the membrane?
Hydrophobic molecules can cross the cell membrane because the membrane is made up of a double layer of lipids, which are also hydrophobic. This allows hydrophobic molecules to pass through the membrane easily, while hydrophilic molecules have a harder time crossing.
What allows and blocks materials from entering a cell?
The cell membrane allows small, uncharged molecules like oxygen and carbon dioxide to pass through freely. Larger molecules and charged ions require specific protein channels or transporters in the cell membrane to enter. The cell membrane blocks large molecules, charged ions, and hydrophilic molecules from freely crossing.
What part of the cell is referred to as to fluid mosaic model?
The cell membrane or plasma membrane is often referred to as the fluid mosaic model. This is because it is composed of a fluid lipid bilayer with embedded proteins, giving it a mosaic-like appearance. The fluidity allows for the movement and exchange of molecules within the membrane.
What is selectively permeable?
The property of a membrane or other material that allows some substances to pass through it more easily than others.Selective permeability refers to the control that a cell membrane has in terms of what it allows to cross it. This gives the cell membrane the ability to choose which molecules enter or leave.
