0
Water molecules spreading through a membrane with a change in cell size is an example of what?
Wiki User
∙ 9y ago
Water molecules spreading through a membrane with a change in cell size is an example of osmosis. In osmosis fluid passes both in and out of the semipermeable membrane in osmosis, but usually there's a net flow in one direction.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Water molecules spreading through a membrane with a change in cell size is an example of?
osmosis
Using an example explain what is meant by a partially permeable membrane?
A membrane that allows some things to pass through it but not others. It can be to do with size of the molecule, electronic charge or other characteristics. Think of a sieve or colander as an example of the semi-permeable membrane and a mixture of sand and peas as the chemical mixture at one side of the membrane. The membrane will only allow the sand to pass through based on size. In cases such as this, larger molecules could pass through active transport channels and such that may be present on the membrane but these are energy-dependant whereas diffusion across a semi-permeable membrane is not.
Molecules can pass through the cell membrane of the human cell?
The molecules that can pass through the cell membrane of the human cell include water. Other molecules include fat soluble vitamins.
How water molucleus move through the cell membrane doing out mosis?
During osmosis, water molecules move through the cell membrane by passing through microscopic openings in the membrane. The openings are large enough for the water molecules to pass through.
What does selective permeability mean what is responsible for the selective permeability of the plasma or cell membrane?
When a cell's membrane is permeable, it means that only certain proteins and other molecules can go in and out of the porous membrane, through protein pumps and other pathways. Some molecules stay inside the cell, while others float outside. Starches, for example, are large molecules that cannot pass through the membrane.
Water molecules spreading through a membrane with a change in cell size is an example of?
osmosis
Water spreading through a membrane with a change in cell size is an example of what?
Water molecules spreading through a membrane with a change in cell size is an example of osmosis. In osmosis fluid passes both in and out of the semipermeable membrane in osmosis, but usually there's a net flow in one direction.
Which molecules difuse through the lipid portion of the plasma membrane?
Only nonpolar (hydrophobic) molecules can pass through the bi-lipid membrane. For example, hormones are nonpolar, and they can pass through the membrane.
What goes through the cell membrane?
Nonpolar molecules (example: lipids) Small polar molecules such as water
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.
How do small molecules get through the cell membrane against a concentration?
How do small molecules get through a cell membrane
Why do passenger molecules need to be helped by the carrier protein?
Some molecules can't go through the cell membrane.
Using an example explain what is meant by a partially permeable membrane?
A membrane that allows some things to pass through it but not others. It can be to do with size of the molecule, electronic charge or other characteristics. Think of a sieve or colander as an example of the semi-permeable membrane and a mixture of sand and peas as the chemical mixture at one side of the membrane. The membrane will only allow the sand to pass through based on size. In cases such as this, larger molecules could pass through active transport channels and such that may be present on the membrane but these are energy-dependant whereas diffusion across a semi-permeable membrane is not.
Why do sugar molecules not diffuse through a plant cell membrane?
The membrane is semi-permeable. Sugar molecules are too large to diffuse through.
When do molecules not get through the cell membrane?
when your not breathing
Molecules can pass through the cell membrane of the human cell?
The molecules that can pass through the cell membrane of the human cell include water. Other molecules include fat soluble vitamins.
What is the movement of molecules through a membrane due to the pressure of a liquid on that membrane?
Osmosis.
