respiration of plants definition - GARDENING
Respiration is the process of releasing energy from food and excretion is the removal of waste from the body. Plants also undergo the process of respiration and excretion. During respiration there is ...
Context Explanation
Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water. In physiology, respiration is a process that facilitates the transport of oxygen from the outside environment to bodily tissues and the removal of carbon dioxide using a respiratory system. Cellular respiration is a series of chemical reactions that break down glucose to produce ATP, which may be used as energy to power almost all cellular reactions throughout the body. Respiration in biology is a fundamental process that allows living organisms to obtain the energy necessary for all life functions.
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It involves a series of biochemical reactions that break down nutrient molecules, primarily glucose, to release stored chemical energy. Respiration is the process of gas exchange between the air and an organism's cells. Three types of respiration include internal, external, and cellular respiration. Cellular respiration is the process by which cells break down these molecules, primarily glucose, to release energy in a usable form. The key product of this breakdown is ATP, often described as the energy currency of the cell.
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In humans, respiration involves two main processes: breathing (external respiration) and cellular respiration (internal respiration). The respiratory system (lungs) facilitates the intake of oxygen and removal of carbon dioxide.