how exchange of gases takes place in higher organisms 5 marks long answer
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Answer:
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Explanation:
Gases exchange is a process where the oxygen enters into the bloodstream from the lungs and carbon dioxide is eliminated to the lungs from the bloodstream. Apart from oxygen and carbon dioxide certain organisms also exchange methane, nitrogen, and hydrogen across their cell membrane with the environment. Oxygen is an important component for the survival of most of the living beings on Earth. Gas exchange is considered a physical process that takes place through diffusion. In most living beings, Gases are taken in by metabolic reactions or cellular activity. Hence for the proper exchange of gases, the interior of the cell and the external environment are two major criteria that play an important role. Organisms are divided into unicellular and multicellular. In both, the process of exchange, transportation, and regulation of gases vary. In unicellular organisms like Protozoa and Bacteria, the exchange of gases takes place through the cell membrane. However, this mechanism is advanced when it comes to multicellular organisms wherein, the exchange of gases takes place between internal organs (Lungs) and the external environment.
Answer:
Gases exchange is a process where the oxygen enters into the bloodstream from the lungs and carbon dioxide is eliminated to the lungs from the bloodstream. Apart from oxygen and carbon dioxide certain organisms also exchange methane, nitrogen, and hydrogen across their cell membrane with the environment. Oxygen is an important component for the survival of most of the living beings on Earth. Gas exchange is considered a physical process that takes place through diffusion. In most living beings, Gases are taken in by metabolic reactions or cellular activity. Hence for the proper exchange of gases, the interior of the cell and the external environment are two major criteria that play an important role. Organisms are divided into unicellular and multicellular. In both, the process of exchange, transportation, and regulation of gases vary. In unicellular organisms like Protozoa and Bacteria, the exchange of gases takes place through the cell membrane. However, this mechanism is advanced when it comes to multicellular organisms wherein, the exchange of gases takes place between internal organs (Lungs) and the external environment.
Explanation:
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