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What is the term for the Diffusion of water across the concentration gradient?
The term for the diffusion of water across a concentration gradient is osmosis. Osmosis refers to the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
Movement of water down its concentration gradient?
Osmosis is the movement of water across a selectively permeable membrane from an area of higher water concentration to an area of lower water concentration. This process is passive and does not require energy input. Osmosis plays a crucial role in maintaining the balance of water in cells and tissues.
Diffusion osmosis active transport all of these are methods by which a cell?
Diffusion, osmosis, and active transport are methods by which a cell can move molecules across its membrane. Diffusion is the passive movement of molecules from an area of high concentration to low concentration. Osmosis is the diffusion of water molecules across a selectively permeable membrane. Active transport requires energy to move molecules against their concentration gradient.
A type of transport in which water moves across a membrane and down its concentration gradient is?
osmosis. It is a passive transport mechanism where water molecules move from an area of higher concentration to an area of lower concentration through a selectively permeable membrane, such as the cell membrane.
When molecules such as oxygen are moved into Cells along their concentration gradient directly through the Cell membrane - this is called?
Trans-membrane diffusion.
What is is required for diffusion to occur?
A concentration gradient and a (semi-)permeable membrane.
What term describes the diffusion of the water through a semipermeable membrane down a concentration gradient?
Osmosis is the diffusion of water molecules down a concentration gradient through a semi-permeable membrane
When water diffuses through a selectively permeable membrane?
Diffusion without a concentration gradient; osmosis with.
What does facilitated diffusion?
A transport protein, a large polar molecule, a semi-permeable membrane and a concentration gradient.
What is essential for diffusion?
A- A Concentration Gradient B- A Selectively Permeable Membrane C- A Source of Energy D- A Protein The Answer Is (A) Diffusion can occur without a semipermeable membrane, as diffusion is simply movement of a substance from high to low concentration. A source of energy is needed only for active transport. Proteins are needed if the the particles transported are too big to pass the semipermeable membrane.
What is the movement of water through a selectively permeable membrane?
The movement of water through a selectively permeable membrane is called diffusion. Water will always diffuse down a concentration gradient, from high solute concentration to low solute concentration.
What is the term for the Diffusion of water across the concentration gradient?
The term for the diffusion of water across a concentration gradient is osmosis. Osmosis refers to the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
What is necessary for simple diffusion?
For simple diffusion to occur, a concentration gradient must exist where a substance moves from an area of higher concentration to an area of lower concentration. Additionally, the cell membrane must be permeable to the substance diffusing, allowing it to pass through freely.
How is omosis defined?
Osmosis is the diffusion of fluid through a semipermeable membrane.
What drives Facilitated diffusion?
Facilitated diffusion is a passive process whereby a molecule is "carried" across a semi-permeable membrane by a channel or protein carrier. Like diffusion, this process requires no energy, however, since passive diffusion can drive movement against a concentration gradient it is not really diffusion.
If diffusion is going to occur there has to be what?
A difference in the concentration throughout space because diffusion doesn't just happen in a cell or aqueous solution by definition diffusion is just from high to low concentration
What are ways to maximise the rate of diffusion of a substance across a membrane?
To maximize the rate of diffusion of a substance across a membrane, you can increase the concentration gradient by maintaining high concentration levels on one side. You can also increase the surface area of the membrane for more contact between the substance and the membrane. Additionally, ensuring the membrane is thin and permeable will aid in faster diffusion.
