Cellular Respiration
ATP = Adenosine Triphosphate What is it? Energy molecule How store energy? Energy stored in chemical bonds Energy is released when ATP is broken into ADP Why needed? ATP used for many activities Muscles, heart, translation, mitosis, active transport, etc…
Cellular Respiration Overview Defined: Creation of ATP from glucose Exergonic reaction: reaction that releases energy Who: All life End Result: ATP
Glucose (6 carbon molcule) Step 1: Glycolysis Glucose (6 carbon molcule) ATP ATP ATP ATP ATP ATP What happens? Cell gains 2ATP molecules How it happens? Glucose (from our food) is broken down Organisms that need more ATP to survive proceed to step 2….aerobic respiration Plants, animals, fungi, protista Organisms that don’t need more ATP to survive proceed to step 2…fermentation Bacteria
Step 2: Depends on the Organism Step 2: Fermentation Without oxygen Molecules needed to restart glycolysis created 2 more ATPs can be created Lactic acid created (soreness) Step 2: Aerobic Respiration In mitochondria With oxygen present Oxygen recombines ADP to create 36 more ATP molecules CO2 waste created
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Connection between photosynthesis & respiration Plants Create glucose through photosynthesis Glucose is used to make ATP during cellular respiration Animals Animals eat plants to obtain their glucose Glucose is used to make ATP during cellular respiration
Kobe Kuiz Which molecule is the energy molecule of cells? Which types of organisms perform respiration? When is lactic acid fermentation performed? When is aerobic respiration performed? Why is aerobic respiration the preferred way to create ATP? Which organelle creates most ATP energy needed by cells? Where does cellular respiration takes place?