cellular respiration

noun
variants: or less commonly cell respiration

Definition of cellular respiration

: any of various energy-yielding oxidative reactions in living matter that typically involve transfer of oxygen and production of carbon dioxide and water as end products Cellular respiration is a series of reactions, occurring under aerobic conditions, during which large amounts of ATP are produced.— Teresa Audesirk and Gerald Audesirk One of the primary sources of energy is glucose, the basic building block of starch and many sugars in our diet. Its oxidation in cell respiration can be subdivided into three phases: glycolysis, the Krebs cycle and the system of electron transport.— Pete Moore

Examples of cellular respiration in a Sentence

Recent Examples on the Web An additional 30 percent to 50 percent of children with autism show signs of mitochondrial dysfunction, such as abnormal levels of certain byproducts generated by cellular respiration, the process through which ATP is produced. Diana Kwon, Scientific American, 18 June 2021 In a process known as cellular respiration, organisms use oxygen to oxidize substrates (for example sugars and fats) and generate energy. David Bressan, Forbes, 3 Mar. 2021 Anaerobic creatures, bacteria that instead of oxygen use other elements, like sulfur and methane, for cellular respiration, could still survive. David Bressan, Forbes, 3 Mar. 2021 Known as the cell's powerhouse, mitochondria is responsible for cellular respiration and produces energy, known as adenosine triphosphate (ATP), from oxygen. Meg Neal, Popular Mechanics, 4 Oct. 2020 More attention must be paid to basic metabolism and energy regulation, including the cellular respiration of neurons and glial cells. Dean Mobbs, Scientific American, 20 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cellular respiration.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cellular respiration

1888, in the meaning defined above

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Time Traveler for cellular respiration

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The first known use of cellular respiration was in 1888

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Dictionary Entries Near cellular respiration

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Cite this Entry

“Cellular respiration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cellular%20respiration. Accessed 5 Dec. 2021.

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More Definitions for cellular respiration

cellular respiration

noun

Medical Definition of cellular respiration

: any of various energy-yielding oxidative reactions in living matter that typically involve transfer of oxygen and production of carbon dioxide and water as end products

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