guard cells and stomata.
Carbon dioxide and oxygen enter and leave the plant through the stomata, on the underside of leaves.
to allow the correct amount of oxygen to enter and leave the substance
The element is carbon. Organic chemistry revolves around carbon-containing compounds that have C-C or C-H bonds. Not all compounds that have carbon are classified as organic though, such as carbon dioxide.
You can, the dry ice(solid form of carbon dioxide) will ultimately evaporate into carbon dioxide gas, and will then leave only the regular ice (frozen water). Because the dry ice will no longer exist, the regular ice will melt.
The flame of a Bunsen burner that is yellow in color will leave a black carbon residue due to the incorrect mixture of oxygen into the flame. Because there is not enough oxygen for complete combustion, the carbon reside is left behind. When the Bunsen flame has a sufficient amount of oxygen mixed in, hence the 'roaring flame', it has a blue color and does not leave a carbon residue due to complete combustion of the acetylene gas.
Carbon dioxide and oxygen enter and leave the plant through the stomata, on the underside of leaves.
Oxygen must enter our blood and Carbon Dioxide must leave the blood through our lungs. They do so by diffusion between the cappillaries.
There are a number of gases that enter and leave the lungs - predominantly, humans Inspire (Breathe in) Oxygen and Expire (Breathe out) Carbon Dioxide. soo that is the answer init lool x
Diffusion
Oxygen (O2) and Carbon Dioxide (CO2) =)
Oxygen must enter our blood and Carbon Dioxide must leave the blood through our lungs. They do so by diffusion between the cappillaries.
Oxygen is brought into the blood, and carbon dioxide released from the blood, at the alveoli of the lungs. Gases diffuse across the alveolar membrane to enter or leave the blood.
plants take in carbon dioxide and release oxygen
Oxygen and carbon dioxide get into and out of cells via diffusion. The gases diffuse across the thin capillary wall, and then diffuse across the cell membrane.
stomata
Guard cells allows the exchange of oxygen and carbon dioxide in and out of the leaf. This is known as leaf exchange. When guard cells are full of water they swell up and close meaning no oxygen can leave or carbon dioxide can enter, but when the water is taken away from the cell they open up to allow oxygen to exit and carbon dioxide to enter.
carbon dioxide goes into pores in the under surface of the leaf, called stomata, and diffuse into the leafs tissues and oxygen exits through these pores aswell though this cannot happen when the stomata close up