0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why is it easier to move materials across membranes down a concentration gradient?
osmotic pressure
What acts as a countercurrent exchanger to maintain the osmotic gradient while delivering a nutrient blood supply?
vasa recta
What are osmotic gradients?
When water flows from areas of high concentration to areas of low concentration through semi-permeable membranes; down it'd concentration gradient.
What is isomotic solution?
iso-osmotic is different to isotonic even though they have the same number of solute particles as in the inside of red blood cells in isotonic solutions movement of water in and out of the cell is the same and RBC's remain unchaged, in iso-osmotic solutions RBC swell and burst this is because the semi permeable cell membrane cannot exclude iso-osmotic solutios as it can other solutes, causing a concentration gradient
What happens as the concentration gradient of the intersititial fluid increases?
As the concentration gradient of the interstitial fluid increased, the potassium concentration increased and there was a noticeable decrease in urine volume excreted.
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.
The osmotic gradient ____ as it moves deeper into the medulla?
Increases
Why is it easier to move materials across membranes down a concentration gradient?
osmotic pressure
The mechanism that establishes the medullary osmotic gradient depends most on the permeability properties of the?
loop of Henle
True or false Obligatory water reabsorption involves the movement of water along an osmotic gradient?
false
Which term describes describes the difference in the concentration of a substance across a cells membrane?
This is called the osmotic gradient.
Is osmotic a diuretic?
Osmotic diuretics are a type of diuretic not a specific drug. Osmotic diuretics work by increasing blood flow to the kidneys and preventing the tubes in the kidneys from making such concentrated urine so that there is no gradient for water to be reabsorbed so you will pee all that water out. An example of an osmotic diuretic is mannitol.
Which term describes the difference in the concentration of a substance across a cells membrane?
concentration gradient
Pressure is equal to the tendency of water to enter one solution from another due to a concentration gradient?
Osmotic Pressure
What acts as a countercurrent exchanger to maintain the osmotic gradient while delivering a nutrient blood supply?
vasa recta
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
