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In most mammals, it involves oxygen from air being trasported across the "type I pneumocyte" (a broad, thin, leaf-like cell) which makes up the lining of the alveoli (air sacs) of the lungs. The other cell in close association with the pneumocyte is the 'endothelial cell'. This cell makes up the lining of the small blood vessel next to alveoli. Gas is exchanged across these cells by diffusion.
Carbon dioxide, the main waste product of metabolism, diffuses rapidly across these two cells so we can exhale it.
Oxygen is not as soluble and the hemoglobin of blood facilites this diffusion so we can absorb it into our blood.
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A layer of cells in a leaf involved in gas exchange?
The exchange of oxygen occurs in the spongy layer. When light hits the spongy layet it will open which releases the oxygen and lets carbon dioxide in.
What is the site for gas exchange?
the organ that is involved in gas exchange is the lung. the specific lung structure that is the site for gas exchange is the alveolus which is part of the alveoli, which is found in the lung.
What provide the greatest surface area for gas exchange?
Gas exchange occurs in the alveoli of the lungs.
Why are cells of the spongy layer packed so loosely together?
All plant cells respire all of the time and need to exchange gases. The main gas exchange surface in plants are the spongy mesophyll cells in the leaves. Leaves have a huge surface area, and the irregular-shaped, loosely-packed spongy cells increase the area for gas exchange even more.
What does the spongy layer of a privet leaf do?
Spongy Layer - A layer of the mesophyll. The spongy layer consists of chloroplasts and parenchyma cells, and relatively large intercellular spaces. It is far less ordered than the palisade layer, and the intercellular spaces are important in gas exchange and transpiration.
What vessels is responsible for gas and nutrient exchange with each of the body's cells?
The capillaries are responsible for gas and nutrient exchange with each of the body's cells.
Is the spongy layer of a leaf responsible for storage and gas exchange?
yes.
What is the main function of the cells indicated by the black pointer?
regulate the rate of gas exchange
What are epithelial lung cells well suited for?
gas exchange
What makes something living?
Gas Exchange, Reproduction, and is made of up of one or more cells, then you know that something is living. Gas Exchange, Reproduction, and is made of up of one or more cells, then you know that something is living. Gas Exchange, Reproduction, and is made of up of one or more cells, then you know that something is living.
What is the function of the guard cells in regulating gas exchange in a leaf?
The stoma opens and closes to allow gas exchange. The Guard cells are located around the stoma and regulate the opening and closing of the stoma.
Where in the respiratory tract does gas exchange occur?
The gas occurs by simple diffusion through the cells.
