BIOM 2000 Lecture Notes - Lecture 17: Cellular Respiration, Bronchus, Trachea

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The human body is made up of trillions of metabolically active cells. Living cells use atp to power their cellular processes. Atp is produced in mitochondria by oxidizing nutrients, and incorporate the released energy into high-energy phosphate bonds of ato. ** o2 + glucose --- h20 + co2 + energy --- atp. Refers to the oxygen-consuming process that occurs in cells (cellular respiration) The uptake of oxygen and its delivery to body cells involve the respiratory and circulatory systems. Carbon dioxide affects body acid-base balance; carbon dioxide levels in body tissues must be carefully controlled. The circulatory system, and the respiratory system, play essential support roles in ensuring the removal of carbon dioxide from body tissues, and excretion of the gas via the lungs. Cellular respiration: consumption of oxygen, occurs in mitochondria. Chemical energy is released in form of atp. Nutrients are broken down by enzymes in the cytoplasm of cells to form smaller intermediate acetic acid compounds.

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