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What does the mechanism of the medullary pressure of the osmotic gradient depend on?
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Why is it easier to move materials across membranes down a concentration gradient?
osmotic pressure
What type of gradient is involved in the pressure flow theory of phloem transport?
The pressure-flow hypothesis explains the function of pholem because ONE DIRECTION IS THE BEST
Calculate the osmotic pressure of 0.500 M sodium chloride at 25oC.?
The osmotic pressure is 24,44 at.
Why Albumin and Glucose have the same osmotic pressure?
Albumin and glucose have the same osmotic pressure because they are isotonic compounds.
How does tonicity relate to osmosis?
Tonicity refers to the measure of the effective osmotic pressure gradient between two solutions. The higher the difference in the tonicity between the two solutions, the more osmosis transpires.
The mechanism that establishes the medullary osmotic gradient depends most on the permeability properties of the?
loop of Henle
Why is it easier to move materials across membranes down a concentration gradient?
osmotic pressure
Pressure is equal to the tendency of water to enter one solution from another due to a concentration gradient?
Osmotic Pressure
What pressure is equal to the tendency of water to enter one solution from another due to the concentration gradient?
Osmotic Pressure
What is pressure is equal to the tendency of water to enter one solution from another due to a concentration gradient?
Osmotic Pressure
Difference between osmotic diuresis and water diuresis?
Osmotic Diuresis Water diuresis *High amount of H2O reabsoebed in *Normal absorption. PCT. *A lot of solutes are lost. *loss of solute amount is less. *Very high amounts of urine are *Amounts of urine produced are less produced. than that in osmotic diuresis. *Low medullary osmolality. *High medullary osmolality. *Normal *The limiting concentration gradient *The limiting gradient is not reached. for Na is reached at PCT. *Hyponatremia may occur. *Takes more time to get hyponatremia.
What is the pressure for diffusion that is produced by the concentration gradient?
Osmotic Pressure. It exists anywhere that there is a soluble substance concentration gradient; that is, not only when a membrane separates substance concentrations. See: Brownian Motion.
Where is osmolarity greatest in kidney?
Osmolarity is greatest in the innermost portion of the medulla near the renal pelvis due to the osmotic gradient. As one goes deeper into the renal medulla, the osmotic gradient increase. The osmolarity varies from 300 mOsm at the edge of the medulla to the innermost at approximately 1200-1400 mOsm. Think of the movie, Silence of the Lamb, when Anthony Hopkins eats that kidney, as he eat closer and closer to the kidney, it get salter. The medullary osmotic gradient is used for water reabsorption in the collecting duct, when ADH is present, thus increasing blood volume and result in increasing blood pressure.
What is the main factor that creates the high osmotic gradient between the cortex and medulla?
A high osmotic gradient between the cortex and the medulla is caused by the running, walking, or jumping of a human person. These simple actions cause the osmotic gradient to rise significantly.
Why do people have salty tears?
Water is moved from the body to the tears by creating an osmotic gradient to pull the water from the interstitial fluid. In that sense a tear (lacrimal) or sweat gland is like a small kidney in reverse. Blood pressure + osmotic pressure = tears or sweat.
The osmotic gradient ____ as it moves deeper into the medulla?
Increases
What type of gradient is involved in the pressure flow theory of phloem transport?
The pressure-flow hypothesis explains the function of pholem because ONE DIRECTION IS THE BEST
