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The heart is constantly pumping blood around the body.
blood entering the lungs is deoxygenated and high in C02
The air in the alveoli has a high oxygen concentration and in comparison is low in C02
This sets up a concentration gradient.
This causes oxygen to diffuse into the RBC and C02 to diffuse out in order to try balance the concentration.
This balance is maintained by breathing, taking away the C02 in the lungs and bringing in fresh O2 and the constant pumping of blood, bringing more deoxygeneate blood into the lungs
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoThe concentration gradient is maintained by breathing, which is constantly refreshing the air inside the alveolus.
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How are concentration gradients maintained for diffusion?
Passive transports such as diffusion and osmosis move down their concentration gradients.
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
What are concentration gradients?
Concentration gradients is a solutes. This is used in the body.
What is it called when oxygen moves from the lungs to the bloodstream?
diffusion - the natural movement of particles from high to low density. oxygen dissolves in a film of liquid water lining the alveoli (tiny air sacs in the lungs) and the wall of the alveoli and wall of the capillary (each 1 cell thick) into the blood in the capillary. the oxygen is moving from the high concentration of oxygen in the lung to the low concentration of oxygen in the blood. this low concentration is maintained in the blood since it continuously flows away and is replaced by oxygen poor blood. the high concentration of oxygen in the lungs is of course maintained by breathing in fresh air.
How can the oxygen you bring in to your body get into your circulatory system?
your lungs have structures called alveoli. The alveoli are surrounded by capillary beds which carry blood. The oxygen enters the alveoli when you inhale. The oxygen then diffuses from high concentration in your alveoli to low concentration the blood in the capillaries surrounding the alveoli.
How can the oxygen you bring into your body get to your circulatory system?
your lungs have structures called alveoli. The alveoli are surrounded by capillary beds which carry blood. The oxygen enters the alveoli when you inhale. The oxygen then diffuses from high concentration in your alveoli to low concentration the blood in the capillaries surrounding the alveoli.
In what direction do particles natural diffuse?
Down concentration gradients.
Does the exchange of carbon dioxide depend on the concentration of oxygen in the alveoli and the blood?
No. It depends on the concentration of carbon dioxide in the alveoli and the blood. The concentration of carbon dioxide in the capillaries of the alveoli is higher than the concentration of carbon dioxide in the air, so carbon dioxide in the capillaries of the alveoli diffuses out of the capillaries into the alveoli of the lungs and is exhaled.
How are oxygen carbon dioxide and other gases exchanged in the lungs and body tissues?
In the lungs, the respiratory zones end in sacs called alveoli, which are the site of gas exchange. The alveoli have walls only one cell thick, and are surrounded by pulmonary capillaries which again have walls only once cell thick; gases diffuse, along their concentration gradients (i.e. from the area of high concentration to the area of low concentration), through these two thicknesses of cells. You can also find this on Wikipedia.com
What is the pumping of materials across a membrane against their concentration gradients?
Active Transport
How is ozone concentration maintained in the atmosphere?
The ozone concentration is maintained in atmosphere by UV. They create and deplete ozone.
