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Concentration gradients is a solutes. This is used in the body.
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∙ 9y ago
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What concentration gradients are established and maintained by the sodium potassium exchange pumps?
high Na+ concentration in the extracellular fluid; high K+ concentration in the cytoplasm
When osmosis do not occur?
Osmosis across the cell membrane doesn't occur when the concentration gradients, and therefore the water potential inside and outside of the cell are the same
How do you define osmosis?
Osmosis is the movement of water across a selectively permeable membrane in a response to gradients of concentration, pressure, or temperature. I got this from my Biology textbook.
What is the difference between purple and magenta?
Purple gradients towards blue. Magenta gradients towards red.
What is a sentence with the words diffusion and osmosis?
Osmosis is the mechanism by which diffusionacross a cell membrane occurs when there is a concentration gradient from one side of the membrane to the other.Osmosis and Diffusion are extremely similar because they both involve molecules moving from a high to low concentration to reach equilibrium.Diffusion and osmosis are the same in that they both move down their gradients to cause substances to be evenly distributed.
How are concentration gradients maintained for diffusion?
Passive transports such as diffusion and osmosis move down their concentration gradients.
In what direction do particles natural diffuse?
Down concentration gradients.
What is the pumping of materials across a membrane against their concentration gradients?
Active Transport
What concentration gradients are established and maintained by the sodium-potassium exchange pump?
high Na+ concentration in the extracellular fluid; high K+ concentration in the cytoplasm
What concentration gradients are established and maintained by the sodium potassium exchange pumps?
high Na+ concentration in the extracellular fluid; high K+ concentration in the cytoplasm
Why would a cell need active transport?
To transport protein to specific areas of the cell, e.g. the synaptic terminal of a neuron's axon; and to transport ions & chemicals against their concentration gradients
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.
Which process uses proteins to move molecules against a concentration gradients?
active transport
Do greatest changes in weight occur in cells with steepest concentration gradients?
Yes, it does. Because the rate and the concentration are equally related, the biggest the difference in concentration the grater the rate of change of this concentration (osmosis)
Diffusion is important in body fluids because it tends to?
It tends to eliminate local concentration gradients.
What drives exchange of fluids between tissues and the blood?
concentration gradients, osmosis, and hydrostatic pressure
How does gradient affect diffusion?
A concentration gradient is a difference in concentration across a space. It affects diffusion and osmosis because both of these passive transports move down their concentration gradients, or from an area of high concentration to low concentration.
