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Just like particles of different charge are attached to each other, particles tend to go from place where's concentration bigger to places where there's lower. No energy is required for this process. Once, lungs are wide open, air goes in because the pressure in lungs is smaller than one around us. Blood that's full of CO2 comes into the lungs. Since there's more CO2 in the blood than there's in the lungs, and more O2 in the lungs than there's in the blood, O2 goes to the blood and CO2 goes to the lungs, thanks to this process. Then, the blood that full of O2 goes to the cells. Cells are always full of CO2 since they're constantly performing oxidation . Then, the same thing happens. CO2 comes out of the cells and goes to the blood since there's less of it in the blood, and O2 goes into the cells. Thanks to this particles trait, there's no energy that is used for O2 going to the blood and cells.

I hope I made this more clear for you, and I'm sorry for my bad English.

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Diffusion in the respiratory system?

Diffusion in the respiratory system refers to the process by which gases, such as oxygen and carbon dioxide, are exchanged between the lungs and the bloodstream. This occurs at the alveoli, where oxygen from the air diffuses into the blood and carbon dioxide from the blood diffuses into the air. Diffusion occurs because of the concentration gradient of these gases between the alveoli and the blood.


When diffusion is the net movement of a substance down a concentration gradient?

Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration, driven by the concentration gradient. This net movement occurs until equilibrium is reached, where the concentration of the substance is uniform throughout the space. It plays a crucial role in various biological processes, such as gas exchange in the lungs and nutrient absorption in cells. Overall, diffusion is a passive transport mechanism that does not require energy input.


What do you learn with diffusion?

Diffusion is the process by which molecules spread out from an area of higher concentration to an area of lower concentration. By studying diffusion, you can learn about the movement of particles in a substance and how this affects the overall distribution of these particles. Diffusion is important in various biological processes, such as the exchange of gases in the lungs and the movement of nutrients within cells.


How do gases move in and out of tissues?

Gases move in and out of tissues through diffusion, which is the passive movement of molecules from an area of higher concentration to an area of lower concentration. In the respiratory system, oxygen moves from the alveoli in the lungs into the bloodstream, while carbon dioxide moves from the bloodstream into the alveoli to be exhaled.


What is the term that pertains to the exchange of gasses between the blood and alveolar air?

The air of the alveoli has a greater partial pressure of oxygen than blood and a lower partial pressure of carbon dioxide. This creates a gradient across the membrane. The gases diffuse from an area of high concentration to an area of low concentration, thus the carbon dioxide moves out of the blood into the air and the oxygen moves from the air into the blood. According to Fick's law this diffusion is porportional to (diffusion gradient x membrane permeability)/thickness of the membrane also called cellular respiration

Related Questions

When and where does diffusion happen?

Diffusion can happen anytime and anywhere there is a concentration gradient. It is a passive process where particles move from an area of high concentration to an area of low concentration to achieve equilibrium. Examples include the exchange of gases in the lungs during breathing and the movement of nutrients into cells.


Diffusion in the respiratory system?

Diffusion in the respiratory system refers to the process by which gases, such as oxygen and carbon dioxide, are exchanged between the lungs and the bloodstream. This occurs at the alveoli, where oxygen from the air diffuses into the blood and carbon dioxide from the blood diffuses into the air. Diffusion occurs because of the concentration gradient of these gases between the alveoli and the blood.


What is the Diffusion of gases between alveoli and blood?

The Diffusion is the exchange of oxygen (O2) and carbon dioxide (CO2) between the alveoli and the blood. So blood that is pumping through the capillaries in the lungs has a low concentration of O2 and a high concentration of CO2, in the alveoli it is high concentration O2 low concentration CO2. Therefore the 2 gases exchange across the alveoli membrane by diffusion trying to establish a concentration gradient.


How would the movement of CO2 be affected if the concentration of CO2 in the lungs was equal or higher than the concentration in the blood?

If the concentration of CO2 in the lungs was higher or equal the concentration in the blood, there will be no diffusion of CO2 in the air of the lungs. The person will suffocate in this situation.


What condition exists when you have a high concentration of molecules in one place and a low concentration in an adjacent place?

A concentration gradient exists, which drives the movement of molecules from an area of high concentration to an area of low concentration through processes like diffusion or osmosis. This gradient is essential for processes like nutrient uptake by cells or gas exchange in the lungs.


What determines in which direction carbon dioxide and oxygen will diffuse in the lungs and tissues?

The direction of diffusion for carbon dioxide and oxygen in the lungs and tissues is determined by their respective concentration gradients. In the lungs, carbon dioxide diffuses out of the blood into the alveoli where its concentration is lower, while oxygen diffuses into the blood from the alveoli where its concentration is higher. In the tissues, oxygen diffuses from the blood into the cells where its concentration is lower, and carbon dioxide diffuses from the cells into the blood where its concentration is higher.


What happens in gaseous exchange?

The diffusion of gases takes place from their higher concentration to lower concentration. Exchange of oxygen by carbondioxide is the usual feature of breathing by lungs.


How do diffusion osmosis facilitated diffusion and active transport diffusion differ?

Diffusion is the movement of molecules from an area of greater concentration to an area of lesser concentration. e.g. Exchange of gases in the lungs or body tissues. Osmosis is the diffusion of water through a semi-permeable membrane from an area of low solute to an area of high solute concentration. Faciliated diffusion is the passive transport of molecules down a concentration gradient. It is simply diffusion that involves a protein to make diffusion happen more easily across a cell membrane. Active transport is the moving of substances across the cell membrane using the cell's energy. Molecules are moved against a concentration gradient, i.e they move from an area of lesser concentration to an area of greater concentration. Tlhis is done by a carrier molecules which gets its energy from ATP.


When diffusion is the net movement of a substance down a concentration gradient?

Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration, driven by the concentration gradient. This net movement occurs until equilibrium is reached, where the concentration of the substance is uniform throughout the space. It plays a crucial role in various biological processes, such as gas exchange in the lungs and nutrient absorption in cells. Overall, diffusion is a passive transport mechanism that does not require energy input.


The process by which molecules move from an area of higher concentration to an area of lower concentration?

This process is called diffusion, where molecules move down their concentration gradient to achieve equilibrium. It does not require energy input and is driven by the random motion of particles. Diffusion is a key mechanism for various biological processes such as gas exchange in the lungs and nutrient uptake in cells.


What do you learn with diffusion?

Diffusion is the process by which molecules spread out from an area of higher concentration to an area of lower concentration. By studying diffusion, you can learn about the movement of particles in a substance and how this affects the overall distribution of these particles. Diffusion is important in various biological processes, such as the exchange of gases in the lungs and the movement of nutrients within cells.


What is diffusion simple?

Simple diffusion is the net movement of substances from a region of high concentration to a region of low concentration so its overall net movement is along the concentration gradient. Simple diffusion does not require energy therefore it is 'passive', substances are diffused across the membrane between the phospholipids.