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  1. Respiration (physiology) - Wikipedia

    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.

  2. Cellular respiration | Definition, Equation, Cycle, Process, Reactants ...

    Apr 2, 2026 · cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and …

  3. Cellular Respiration: Steps, Process, and Stages | Osmosis

    Aug 21, 2025 · 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.

  4. Respiration - Definition and Types - ThoughtCo

    Jul 31, 2024 · 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.

  5. What Is Respiration in Biology and How Does It Work?

    Respiration in biology is a fundamental process that allows living organisms to obtain the energy necessary for all life functions. It involves a series of biochemical reactions that break down nutrient …

  6. Respiration in Biology: Processes Explained for Students - Vedantu

    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 …

  7. Respiration - Understanding Global Change

    Cellular respiration uses organic molecules from food (for example, the sugar glucose) and oxygen to produce energy that is stored in the molecule adenosine triphosphate (ATP), as well as heat. Cellular …

  8. RESPIRATION Definition & Meaning - Merriam-Webster

    The meaning of RESPIRATION is the movement of air or dissolved gases into and out of the lungs. How to use respiration in a sentence.

  9. Respiration Explained: Definition, Examples, Practice & Video Lessons

    Respiration involves the exchange of gases, primarily oxygen and carbon dioxide, occurring in two main locations: the alveoli and the tissues. Understanding the differences between these sites is crucial for …

  10. Respiration | definition of respiration by Medical dictionary

    Respiration is the process by which nutrients (specifically sugar, or glucose) and oxygen are taken in to a cell; chemical reactions take place; energy is produce and stored; and carbon dioxide and wastes …