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Animal / Plant Gas Exchange.

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Animal/Plant Gas Exchange Our planet is lively in many ways. Everything on Earth is part of one system, so Gas Exchange could be discussed under Cycles, Interliving, or under Balance. Everything really is connected to everything else. Every living organism must exchange gases to stay alive. We each take in a gas (breathing) we need from the atmosphere, use it to make food or transform food, and release the leftover part of the gas, which the living cells have chemically changed into a different gas. Animals take in oxygen gas, transfer it to their blood, and carry it to every cell, where it is used to transform food into energy, where carbon dioxide gas is created as a by-product or leftover. ...read more.


The diagram below show the circle of gas exchange between photosynthetic life and animal life. Giving/Receiving: Gas Exchange is a system of Giving. Plants give oxygen to animals (including you), and animals give carbon dioxide to plants. Gas Exchange is also a system of Receiving. Plants receive carbon dioxide from animals, and animals receive oxygen from plants. So Gas Exchange is really a Gift Exchange, a life and death Gift Exchange. We can't live without each other. Some Details of the Exchange for Animals Not only flowering land plants give off oxygen. All the billions of green algae in the oceans do as well--any photosynthesis creates free oxygen as a by-product. Every life has to breathe, or respire. ...read more.


Some Details of the Exchange for Plants and Algae Plants breathe too, but not quite like animals. Plants do respire using oxygen in their cells, as animals do, but plants also inhale air to do photosynthesis, which means "putting-together-using-sunlight." Photosynthesis is the process of making food, which all life depends on. Here are the basic parts of photosynthesis: the plant "inhales" carbon dioxide through its leaves. the plant "soaks up" sunlight through its leaves. the plant absorbs water through its roots.The plant circulates carbon dioxide and water to every living cell with its sap; As each cell then produces food, using carbon dioxide and water plus sunlight, it produces oxygen as a by-product or leftover. The leaves "exhale," releasing the oxygen into the air. Summary Without plants, no animals. Without animals, no plants. We all depend on each other. ...read more.

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