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What is the process of moving particles across the plasma membrane of a cell by diffusion?
Wiki User
∙ 13y ago
Known as diffusion, in which a higher concentration of a substance passes across a semi permeable membrane to a lower concentration until equilibrium is reached. The other side of the coin is osmosis, in which fluid is drawn towards a regeon of higher concentration of a substance until equilibrium is reached.
eg! A teabag. The staining of the water around the teabag is diffusion, and the wetting ( saturation ) Of the leaves is osmosis. Both across the semi permeable membrane of the bag ( Cell ).
Wiki User
∙ 14y ago
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Why do dissolved particles on one side of the membrane result in the diffusion of water across the membrane?
Dissolved particles on one side of the membrane results in the diffusion of water across the membrane due to the need to have the same solution concentration on both sides of the membrane. Water will diffuse from a hypotonic solution to a hypertonic solution.
What is the process that utilizes a carrier to move materials across the plasma membrane in the direction of the concentration gradient that does not use ATP?
Active Transport
The process where a nonpolar molecule can just passively get across a membrane is called?
facilitated diffusion
Is diffusion of molecules across the cell membrane the most complex type of active?
No, diffusion of molecules across a cell membrane is a passive process, not active, and arguably the least complex.
What is a transport process by which gases move through a membrane?
Simple Diffusion
What motion of particles across a membrane requires energy?
Movement across a membrane that does require energy is called active transport.
Why do dissolved particles on one side of the membrane result in the diffusion of water across the membrane?
Dissolved particles on one side of the membrane results in the diffusion of water across the membrane due to the need to have the same solution concentration on both sides of the membrane. Water will diffuse from a hypotonic solution to a hypertonic solution.
What is the process that utilizes a carrier to move materials across the plasma membrane in the direction of the concentration gradient that does not use ATP?
Active Transport
Particles moving across a cell membrane without using energy?
Diffusion and Osmosis
The process where a nonpolar molecule can just passively get across a membrane is called?
facilitated diffusion
What is the process that utilizes a carrier to move marerials across the plasma membrane in the direction of the concentration?
Diffusion is what carries materials across the plasma membrane. The diffusion cannot be moved across water.
Diffusion of solvent particles across a semipermeable membrane?
Osmosis is the diffusion of water through a semi-permeable membrane, such as that surrounding a cell. Semipermeable indicates that the membrane will allow certain thing to pass through it while preventing others.
Is diffusion of molecules across the cell membrane the most complex type of active?
No, diffusion of molecules across a cell membrane is a passive process, not active, and arguably the least complex.
What involves the movement of solutes across a selectively permeable membrane by the process of difussion?
facilatated diffusion
What is process that moves molecules across a cell membrane from regions of lower concentration to higher concentration?
The process that can move molecules from a low to a high concentration through a cell membrane is active transport.
What happens during the process of faciltated diffusion?
An Integral Membrane Protein Assists A Specific Substances Across The Membrane.
What happens during the process of faciliated diffusion?
Facilitated diffusion is a passive transport process where specific proteins in the cell membrane help larger or charged molecules pass through. These proteins act as channels or carriers, allowing molecules to move down their concentration gradient without requiring energy input from the cell. This process is important for the movement of substances like glucose and ions across the cell membrane.
