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The phospholipid bilayer that composes the cell membrane is an example of a selectively permeable membrane. It only lets through small, non-polar molecules.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoK+ ions can diffuse across the membrane more easily than Na+ ions.
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What is th role of the cell membrane in homeostasis?
The cell membrane is selectively premeable. It regulates what comes and goes from the cell. Homeostasis- The ability of living things to maintain steady state of operation the membrane helps in this activity. -Ally :D
Cells have selectively what membranes?
Selectively permeable.
What does the term selectively permable mean?
it means it let some materials pass through it while block the way of others for example; the outer shell of egg
What is an example of a selectively permeable?
A selectively permeable cell membrane allows certain molecules or ions to pass through it by means of active or passive transport. The most common example is the phospholipid bilayer cell membrane that surrounds all of our body cells. The inner membranes of an egg are also selectively permeable membranes.
Cell membranes that allow certain molecules to pass through while keeping others out are called?
semi permiable I believe, but I'm not 100 percent sure on the spelling selectively permeable
What is the diffusion of water across a selectively premeable membrane called?
It is osmosis .
What characteristic make a cell membrane selectively premeable?
the chemical nature of the membrane
Why is it important for the cell membrane to be selectively premeable?
It makes it harder for viruses and free radicals to reach the nucleus.
What process require ATP energy to transport materials across a selectively premeable membrane into the cell?
active transport
What is selective premeable?
A membrane which lets pass some materials and stops other is known as a selectively permeable membrane.
The movement of water molecules across selectively premeable?
Osmosis movement of water from high concentration to low concentration.
Is plasma membrane premeable?
The plasma membrane is selectively permeable; it allows some substances to pass through but prevents the passage of other substances
What makes up the selectively premeable membrane that controls which molecules enter and leave the cell?
A cell's membrane is made up of a phospholipid bilayer which has several protein channels and various other transport mechanisms built in.
Why is the cell membrane selectively premeable?
It is just a way of keeping some thing out while allowing others to come into the cell. The cell can be destroyed by some things and not by others. It is something like a window screen which allows air to move in and out but keeps out bugs, some of which can be dangerous.
What is th role of the cell membrane in homeostasis?
The cell membrane is selectively premeable. It regulates what comes and goes from the cell. Homeostasis- The ability of living things to maintain steady state of operation the membrane helps in this activity. -Ally :D
example of a common object that performs similarly to a selectively permeable membrane?
A paper filter
When a drug has a greater effect on a specific organ it is acting?
selectively. an example of this is spinal anesthetic
