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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.
How do net hydrostatic pressure and net osmotic pressure each change along the length of a capillary?
Net hydrostatic pressure decreases along the length of a capillary due to resistance and filtration of fluid out of the capillary. In contrast, net osmotic pressure remains relatively constant along the capillary length, as proteins and solutes that contribute to osmotic pressure do not leave the capillary as easily.
In which direction does water move in a solution when there is a difference in osmotic pressure, from low to high?
In a solution with a difference in osmotic pressure, water moves from an area of low osmotic pressure to an area of high osmotic pressure.
A solutions osmotic pressure differs from its hydrostatic pressure in that osmotic pressure is the force which pulls water across a membrane resulting from?
osmotic pressure is not the pressure which pulls the water , it is the other way round. It is the pressure with which the water molecule travel across the semi-permeable membrane. Hydrostatic pressure as the name suggests is the pressure due to the "standing column of water and not due to the movement
What is osmotic rate?
Osmotic rate refers to the speed at which solvent molecules move across a semi-permeable membrane in response to differences in solute concentrations between the two sides. It is influenced by factors such as solute concentration gradient, temperature, and surface area of the membrane. A higher osmotic rate means that solvent molecules are moving more rapidly across the membrane to equalize the concentrations on either side.
Why are complex carbohydrates better for storing energy than simple sugar?
Simple sugar molecules will create lot of osmotic pressure in the cell. In case of glycogen, you have thousands of glucose molecules put together. Glycogen molecule is compact and does not produce much osmotic pressure.
What is the significance of the r value in determining osmotic pressure in a solution?
The r value in determining osmotic pressure in a solution is significant because it represents the ideal gas constant. This constant is used in the formula for calculating osmotic pressure, which helps to understand the movement of solvent molecules across a semipermeable membrane. A higher r value indicates a higher osmotic pressure, which can impact various biological and chemical processes.
What is the relationship between TDS and osmotic pressure?
TDS increases the osmotic pressure. From the formula, Osmotic pressure = CRT. C as the concentration in mol / L; R = gas constant; T = temperature. The higher the concentration of the solids, the higher is its osmotic pressure.
How do you calculate osmotic pressure in a solution?
Osmotic pressure in a solution is calculated using the formula: iMRT, where is the osmotic pressure, i is the van't Hoff factor, M is the molarity of the solution, R is the gas constant, and T is the temperature in Kelvin.
Molecules within the blood are forced out through the walls of capillaries as a result of osmotic pressure?
false- osmotic pressure draws water in capillaries hydrostatic pressure forces water out
How can one determine the osmotic pressure of a solution?
To determine the osmotic pressure of a solution, you can use the formula: iMRT, where is the osmotic pressure, i is the van't Hoff factor, M is the molarity of the solution, R is the ideal gas constant, and T is the temperature in Kelvin. By plugging in the values for these variables, you can calculate the osmotic pressure of the solution.
What does an osmometer measure?
An osmometer measures the concentration of solute particles in a solution. It does this by determining the osmotic pressure, which is the pressure generated by the movement of solvent molecules across a semipermeable membrane to achieve equilibrium.
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.
When water and useful molecules are drawn back into the blood due to osmotic pressure?
Glomerular Filtration
How does the liver control glycogen?
* Glycogenesis - the conversion of excess glucose into glycogen as a cellular storage mechanism; this prevents excessive osmotic pressure buildup inside the cell * Glycogenolysis - the breakdown of glycogen into glucose, which provides a glucose supply for glucose-dependent tissues. * Gluconeogenesis - de novosynthesis of glucose molecules from simple organic compounds. an example in humans is the conversion of a few amino acids in cellular protein to glucose.
How do net hydrostatic pressure and net osmotic pressure each change along the length of a capillary?
Net hydrostatic pressure decreases along the length of a capillary due to resistance and filtration of fluid out of the capillary. In contrast, net osmotic pressure remains relatively constant along the capillary length, as proteins and solutes that contribute to osmotic pressure do not leave the capillary as easily.
Why would osmotic pressure be low in someone who is starving?
histamines.
