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Factors that influence rate of diffusion
- The rate of diffusion depends on the concentration difference across the two sides of the membrane.
- The rate depends on the permeability of the plasma membrane to the diffusing substance.
- The rate of diffusion depends on the temperature of the solution.
- The rate of diffusion through a membrane is also directly proportional to the surface area of the membrane, which can be increased by such adaptations as microvilli.
the thickness of the cell membrane
the mass of the solute particles
the difference in the initial concentration gradient
*these are also factors that influence the rate of diffusion between extracellular and intracellular environments
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoTemperature, presure,volume , surface area and the concentration of solution.
Moleculesize Enzyme(adding enzyme)
The greater concentration difference the faster osmosis.
by Mehernosh Haidary
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Wiki User
∙ 10y agoOnly some molecules move from a higher concentration to a lower concentration.
Wiki User
∙ 12y agosize of the molecule, Higher Temperature
Wiki User
∙ 13y agoOsmosis.
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What is osmosis and how does it affect cells?
Respiration with and without oxygen is called?
Does increasing membrane permeability affect the time it takes for the osmometer to reach equilibrium?
It should. The permeability of a membrane defines how fast substances move across a membrane from a high concentration environment to the lower concentration environment. The more permeable the membrane the sooner equilibrium is reached when the concentrations on both side are the same.
How does boiling water affect cell membranes of red beet cells?
It breaks down the cell membranes, causing the cytoplasm to exit the cell.
What does the plasma membrane do?
The plasma membrane is like the skin of the cell and lets only certain things in and out. It uses active and passive transport to let things in and out meaning that it uses energy only sometimes to let things in and out (this being active) and lets things move as they please at other time (this being passive)
How does the Concentration gradient of a substance affect the movement of that substance and the expenditure of energy?
The larger the concentration gradient (bigger difference between the two solutes across semipermeable membrane) the faster the rate of diffusion.
What factors affect the diffusion of water?
One of the factors that affect the diffusion of water through a membrane by osmosis is the permeability of the membrane. The amount of water on each side of the membrane may also have an effect on water's diffusion. Water will diffuse to the side with little water to even out the concentration.
What factors affect molecular movement across a selectively permeable membrane?
tanq ina niO maq ARAL kayO t(-.-t) pak u
How does the cell membrane affect the contents of the cell?
It selectively lets things transport into and out of the Cell.
What is osmosis and facilitated diffusion?
Diffusion is the net movement of particles(atoms,ions or molecules) from a region where are of higher concentration to a region where they are of lower concentration, down a concentration gradient.Factors that affect the rate of diffusion1.Temperature2.the concentration gradient3.Physical movement4 surface area to volume ratioThe passage of water from the less concentrated solution to the more concentrated solution across a partially permeable membrane is a process called osmosis
Which of the following statements about a typical plasma membrane is correct?
The Correct Answer: The sides of the plasma membrane that face the cytoplasm and the outside of the cell have different lipid and protein composition.
How does surface area affect diffusion rate?
Diffusion is the movement of particles across a selectively permeable membrane, from a high concentration to a low concentration. So the larger the surface area, the quicker the rate of diffusion because there is more space to diffuse in.
What is osmosis and how does it affect cells?
Respiration with and without oxygen is called?
How the variation of pH affect the permeability of beet root plasma membrane?
Decreasing the pH from alkaline to acidic denatures the proteins within the membrane, making them less functional and efficient. This makes the cell membrane more permeable and allows the red dye, betalain to escape into the external solution via diffusion. The dye goes down a concentration gradient from a higher to a lower concentration.
How does concentration affect the rate of diffusion?
the concentration of saline affects the rate of diffusion through the process of osmosis and diffusion. try the experiment of the 3 cell membranes
How does osmosis affect living things?
Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.
Does increasing membrane permeability affect the time it takes for the osmometer to reach equilibrium?
It should. The permeability of a membrane defines how fast substances move across a membrane from a high concentration environment to the lower concentration environment. The more permeable the membrane the sooner equilibrium is reached when the concentrations on both side are the same.
How does boiling water affect cell membranes of red beet cells?
It breaks down the cell membranes, causing the cytoplasm to exit the cell.
