What is Oxygen Cycle? Explain with Diagram

By Ritika Pant|Updated : November 8th, 2022

The biogeochemical cycle, also known as the Oxygen Cycle, is the process by which oxygen is transferred from living systems to the environment. The procedure contributes to keeping the air's oxygen content at a healthy level. The oxygen cycle process is therefore extremely important.

Oxygen Cycle - Definition and Diagram

The oxygen cycle is the cycle of oxygen wherein oxygen gets transferred between living systems and the environment, also referred to as the biogeochemical cycle.

Oxygen Cycle Diagram

The procedure contributes to keeping the air's oxygen content at a healthy level. The oxygen cycle process is therefore extremely important.

Uses of Oxygen Cycle

During photosynthesis, sunlight causes water molecules to deposit, producing a significant amount of oxygen. Through respiration (breathing) or transpiration, the movement of water is how oxygen is released into the atmosphere. The main uses of oxygen are mentioned below:

  • It is the main by-product of Photosynthesis.
  • It is necessary for the oxidation process of carbohydrates which ultimately releases energy, carbon dioxide, and water. 
  • Oxygen is found in a variety of forms and combinations with other chemicals. 
  • It combines with nitrogen to form nitrates.
  • Oxygen also blends with other elements to create oxides, such as iron oxide and aluminum oxide.

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FAQs on Oxygen Cycle

  • The oxygen cycle involves the movement of oxygen from the atmosphere to the earth and vice versa. Plants utilise carbon dioxide and release oxygen during Photosynthesis, which the animals use for Respiration. The pictorial representation has been provided in the article above.

  • The Oxygen Cycle takes place with plants and Photosynthesis. The first step is Photosynthesis (wherein plants make their food), the second step is Respiration (when plants release oxygen), and finally, the carbon dioxide breathed out by the living organisms is taken up by plants for Photosynthesis. The cycle gets repeated.

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