Air for Breathing
Oxygen and carbon dioxide, which are necessary for life, are found in air. Air, specifically oxygen, is essential for respiration in humans and most other animals. We breathe in oxygen and exhale carbon dioxide, a process that provides our cells with the oxygen needed to produce energy through cellular respiration. When we inhale, we take in air that contains approximately 21% oxygen. This oxygen then travels to the lungs, where it is absorbed into the bloodstream.
The oxygen-rich blood circulates throughout the body, allowing it to be taken up by the body’s trillions of cells. Within each cell, the oxygen combines with glucose (a simple sugar molecule) through a series of biochemical reactions called cellular respiration. This process breaks down the glucose and oxygen molecules, releasing the energy stored within to power the cell’s activities. Carbon dioxide, a waste product, is also produced and expelled from the cell into the bloodstream. Both plants and animals need oxygen in order to transform the chemical energy found in food into energy that can be used for a variety of metabolic processes.
Air for Breathing and Combustion
Air is one of the elements that sustains life on Earth. Air serves two crucial functions – sustaining life through respiration and fueling combustion processes. The air around us makes up the Earth’s atmosphere, which extends about 11 kilometres high. As we get closer to the ground, the air becomes thicker because of gravity.
This air has the right mix of gases and pressure to support life. High in the atmosphere, the ozone layer acts like a shield which protects us from harmful rays from space. In this article, we will read about how air is used in respiration and combustion.
Table of Content
- What is Air?
- Air: Why Is It Important?
- Air for Breathing
- Air for Photosynthesis
- Air for Combustion
- What is Combustion ?
- Conclusion
- Frequently Asked Questions
Contact Us