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Published byConrad Green Modified over 9 years ago
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(it’s NOT just “breathing”. It is also the by our cells!) it allows exchange of outside air and our circulatory system (blood transport) 2 Definition- release of energy the exchange of CO 2 and O 2 AND it’s also the production of energy (ATP)
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Occurs in all cells of all organisms ATP is the molecule all life uses for energy No organism can get energy from sunlight or sugar without putting the energy into ATP.
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Oxygen + food ATP (energy) + carbon dioxide + water O 2 + glucose ATP + CO 2 + H 2 O FORMULA MEANING: The body takes in O 2 and food (glucose) to produce ATP (energy). The body then gives off CO 2 and H 2 O as waste The RESPIRATORY SYSTEM must work with the SYSTEM so that the oxygen can be (Reactants) (Products) 4 CIRCULATORY transported to cells and CO 2 can be taken away from cells !
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AerobicAnaerobic vs. Uses oxygen to release energy from food (36 ATP) Ex. Fish, humans, dogs Ex. Yeast, bacteria, human muscle Does not use oxygen to release energy (2 ATP); AKA fermentation, lactic acid production 6
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uses O 2 Used by most organisms Occurs in the mitochondria Breakdown of glucose Is efficient (makes more ATP per glucose)
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8 Remember they are the “powerhouse” In the mitochondria of ALL plant & animal cells of the cell!
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Absence of O 2 Used by some simple organisms (yeast and bacteria) Occurs in the cytoplasm Partial breakdown of glucose Less efficient (less ATP)
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Depending on what type of organism you are, you create different products after respiring in the absence of oxygen. If you are a: Human cell, you produce (makes your muscles burn) bacteria cell used in making cheese & yogurt, yeast cell used in baking and brewing, ATP and CO2 and H2O 2 ATP and CO2 and alcohol glucose lactic acid + 2ATP glucose CO2 +H2O+ 2ATP glucose alcohol + CO2+ 2ATP 2 ATP and lactic acid you produce
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Cristae in mitochondria provide a large surface area for the series of reactions that occur during aerobic respiration Anaerobic Phase”- glycolysis (break down of glucose) occurs in the cytoplasm Aerobic Phase”- occurs in the mitochondria End Products: 6 CO 2 + 6 H 2 O + 36 ATP
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end products: 6 CO 2 + 6 H 2 O + 36 ATP
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C 6 H 12 O 6 + O 2 CO 2 +H 2 O + 36 ATP (aerobic) C 6 H 12 O 6 lactic acid + 2ATP (anaerobic } humans and bacteria) C 6 H 12 O 6 ethyl alcohol + CO 2 + 2 ATP (anaerobic } bacteria and yeast)
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Obtaining & processing materials needed for energy, growth, repair, and regulation 2 types: › Autotrophic- › Heterotrophic- makes own food takes in preformed organic compounds
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Ability of most plants and some monerans and protists (algae) to manufacture organic compounds from inorganic raw materials
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Photosynthesis- capturing and transforming energy from the sun into chemical energy. Light energy Glucose (sun) (Chemical energy) Small molecules of glucose are synthesized into large starch molecules.
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1. Temperature 2. PH 3. CO 2 & water level 4. Light availability
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Chlorophyll absorbs and and reflects “Plants are Patriotic.” red blue green (that’s why we see the green in plants).
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Veins (Fibrovascular bundle) › Transport materials through leaf › Xylem transports › Phloem transports Guard Cells -regulate the opening and closing of stomates (openings for passage of gases and water) water food/glucose
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When filled with water = When water lost = Life Function= Controls water and gases enter and exit in the leaf open closed regulation..\biomovies\sto mates.mov
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Inorganic Organic Light Energy Chemical Energy Reactants Products Equation
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6CO 2 + 12H 2 O C 6 H 12 O 6 + 6H 2 O + 6O 2 Photosynthesis (light!) Respiration 36 ATP Respiration and Photosynthesis are opposite processes.
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