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The process where a nonpolar molecule can just passively get across a membrane is called?
facilitated diffusion
When a substance moves across the plasma membrane along a concentration gradient at a rate faster than would be expected by simple diffusion alone but without the expenditure of metabolic energy?
The process is called facilitated diffusion, as it relies on carrier proteins or channel proteins to aid in the movement of the substance across the membrane. It does not require the cell to use energy because the movement is still following the direction of the concentration gradient.
Assisted transport of a molecule across the cell membrane without an expenditure of energy is known as?
Passive transport. It relies on the natural movement of molecules from an area of higher concentration to an area of lower concentration, following the concentration gradient. Examples include diffusion and facilitated diffusion.
What is the diffusion of water through the cell membrane is called?
The diffusion of water through the cell membrane is called osmosis. Osmosis occurs when water molecules move across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration in order to equalize the concentration on both sides of the membrane.
Is facilitated diffusion is an active transport?
The name itself indicates there difference. Diffusion occurs without any other active participant/free flow diffusion is called Transport diffusion. Diffusion occurs with help of other active participant is called Facilitate Diffusion
State how facilitated diffusion is achieved?
Facilitated diffusion occurs when a substance is aided across a membrane by a special molecule called an ionophore. Ionophores allow some molecules to diffuse but not others, effectively speeding up the rate of diffusion of that molecule.
The process where a nonpolar molecule can just passively get across a membrane is called?
facilitated diffusion
When a substance moves across the plasma membrane along a concentration gradient at a rate faster than would be expected by simple diffusion alone but without the expenditure of metabolic energy?
The process is called facilitated diffusion, as it relies on carrier proteins or channel proteins to aid in the movement of the substance across the membrane. It does not require the cell to use energy because the movement is still following the direction of the concentration gradient.
The spreading out of a substance from an area of high concentration to an area of low concentration is called .?
diffusion
The proccess by which a protein channel allows molecules to cross the cell membrane is called?
Facilitated diffusion
Assisted transport of a molecule across the cell membrane without an expenditure of energy is known as?
Passive transport. It relies on the natural movement of molecules from an area of higher concentration to an area of lower concentration, following the concentration gradient. Examples include diffusion and facilitated diffusion.
What is the difference between facilitated diffusion and diffusion?
The difference between diffusion and facilitated diffusion is that facilitated diffusion is that the molecules pass through special protein channels.
What motion of particles across a membrane requires energy?
Movement across a membrane that does require energy is called active transport.
What is the diffusion of water through the cell membrane is called?
The diffusion of water through the cell membrane is called osmosis. Osmosis occurs when water molecules move across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration in order to equalize the concentration on both sides of the membrane.
What is the net movement of substances to regions of lower concentration called?
This process is called diffusion. If the substance moving is water, it is called osmosis.
The movement of a substance across a concentration difference is called?
diffusion
The process by which glucose can pass through a cell membrane by combining with special carrier molecules is called?
The process by which glucose can pass through a cell membrane by combining with special carrier molecules is called facilitated diffusion. In this process, carrier proteins aid in the movement of glucose across the membrane down its concentration gradient.
