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The rate of diffusion through a semipermeable membrane will be lowest when?
The rate of diffusion through a semipermeable membrane will be lowest when temperatures are low. Lower temperatures decrease the energy of the molecules, which in turn decreases the rate of diffusion.
What is diffusion rate proportional to?
rate of diffusion depends on the concentration gradient, surface area, distance over which diffusion takes place, size and nature of the diffusing molecule.
What was the average diffusion rate of urea when the 200 MWCO membrane was used as a barrier?
The average diffusion rate of urea through a 200 MWCO (Molecular Weight Cut-Off) membrane would depend on various factors such as concentration gradient, temperature, and membrane properties. Typically, higher MWCO membranes allow for faster diffusion rates of smaller molecules like urea due to their larger pore sizes. Specific experimental data would be needed to calculate the exact diffusion rate in this scenario.
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
Is facilitated diffusion limited by osmotic pressure?
Yes, facilitated diffusion can be limited by osmotic pressure. Osmotic pressure can build up when there is a concentration gradient across a membrane and can affect the movement of molecules through facilitated diffusion by influencing the direction and rate of diffusion.
The rate of diffusion through a semipermeable membrane will be lowest when?
The rate of diffusion through a semipermeable membrane will be lowest when temperatures are low. Lower temperatures decrease the energy of the molecules, which in turn decreases the rate of diffusion.
What is an example of diffusion in a sentence?
The rate of diffusion is determined by the permeability of the membrane and the concentration gradient.
What does NOT influence the rate of diffusion of a chemical across a plasma membrane?
Besides the concentration of the chemical, the pore size of the plasma membrane, and the osmotic pressure of the cytoplasm - nothing else influences the rate of diffusion of a chemical across a plasma membrane.
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.
What is diffusion rate proportional to?
rate of diffusion depends on the concentration gradient, surface area, distance over which diffusion takes place, size and nature of the diffusing molecule.
What influences diffusion of ions across the membrane?
distance involved =diffusion at short distances occurs at a greater rate than diffusion at long distances area involved= diffusion over short distance occurs at a greater rate than diffusion over long distances Barriers=thicker barriers slow down rates of diffusion
How does a selectively permeable membrane affect diffusion?
Factors that influence rate of diffusionThe 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 membranethe mass of the solute particlesthe difference in the initial concentration gradient*these are also factors that influence the rate of diffusion between extracellular and intracellular environments
What happens in simple diffusion?
In simple diffusion, a substance passes through a membrane without any outside intermediary. The rate of diffusion is based on the force exerted..
What is the advantage of the presence of on cell membranes?
the membrane has a greater surface area for an increased rate of diffusion
How can some substance diffuse through a cell membrane at faster rate than by diffusion alone?
In facilitated diffusion, there are temporary openings in the cell membrane that enable certain molecules to pass through quickly.
What was the average diffusion rate of urea when the 200 MWCO membrane was used as a barrier?
The average diffusion rate of urea through a 200 MWCO (Molecular Weight Cut-Off) membrane would depend on various factors such as concentration gradient, temperature, and membrane properties. Typically, higher MWCO membranes allow for faster diffusion rates of smaller molecules like urea due to their larger pore sizes. Specific experimental data would be needed to calculate the exact diffusion rate in this scenario.
Can partition coefficient influence passive diffusion rate?
Yes, the partition coefficient can influence passive diffusion rate by determining how easily a molecule can move across a membrane. A higher partition coefficient typically means the molecule is more likely to dissolve in the lipid bilayer of the membrane, thus facilitating faster passive diffusion. Conversely, a lower partition coefficient can slow down passive diffusion.
