biology

• how cells harvest chemical energy
• oxygen reactant in cellular respiration process breaks down sugar
• brown fat cells have " short circut" their cellular respiration generates only heat not ATP
• photosynthesis and cellular respiration provide energy for life
• life requires energy almost all ecosystems energy ultimately comes from the sun
• in photosynthesis the energy of sunlight is used to rearrange atoms of carbon dioxide and water H20
• produces organic molecules and releasing oxygen
• in cellular respiration o2 is consumed as organic molecules are broken down to Co2 and H20 and the cell captures energy released as atp
• breathing supplies o2 for use in cellular respiration and removes Co2
• respiration often used as a synonym for " breathing" refers to an exchange of gates
• an organism obtains o2 from its environment and releases C02 as a waste product breathing and cellular respirations are closely related
• cellular respiration banks energy in atp molecules
• cellular respiration exergonic energy releasing process that transfers energy from glucose to form atp and captures 34% of the available energy originally stored in glucose with rest of energy lost as heat
• formula c6H12O6+6 O2
• c6H1206 glucose
• 602 oxygen
• 6co2 carbon dioxide
• 6h20 water
• cellular respiration glucose + o2 + C02 + H20+ ATp