Cellular Respiration Cellular Respiration: Harvesting Chemical Energy Ppt from: aurumscience.com.
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Transcript of Introduction to Cellular Respiration. Introduction To Cellular Respiration How did you get the...
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Introduction to Cellular Respiration
![Page 2: Introduction to Cellular Respiration. Introduction To Cellular Respiration How did you get the energy to get ready this morning? Where did you get your.](https://reader036.fdocuments.in/reader036/viewer/2022062423/5697bfee1a28abf838cb9368/html5/thumbnails/2.jpg)
Introduction To Cellular Respiration
• How did you get the energy to get ready this morning?
• Where did you get your energy?
• What had to happen within you for you to get energy?
![Page 3: Introduction to Cellular Respiration. Introduction To Cellular Respiration How did you get the energy to get ready this morning? Where did you get your.](https://reader036.fdocuments.in/reader036/viewer/2022062423/5697bfee1a28abf838cb9368/html5/thumbnails/3.jpg)
Introduction To Cellular Respiration
• The energy that you use for your daily processes is harvested by cellular respiration
• In cellular respiration O2 is consumed as glucose is broken down into CO2 and H2O and the cell captures that energy as ATP
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Introduction To Cellular Respiration
• Cellular respiration has a set chemical reaction
• Just like photosynthesis there is a set pathway with set inputs and products
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Introduction To Cellular Respiration
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Introduction To Cellular Respiration
• What does this equations remind you of?
• Photosynthesis and CR are linked
• The products for photosynthesis are the reactants for CR
• The products for CR are the reactants for photosynthesis
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Introduction To Cellular Respiration
![Page 8: Introduction to Cellular Respiration. Introduction To Cellular Respiration How did you get the energy to get ready this morning? Where did you get your.](https://reader036.fdocuments.in/reader036/viewer/2022062423/5697bfee1a28abf838cb9368/html5/thumbnails/8.jpg)
Introduction To Cellular Respiration
• All cells break down molecules for energy
• Both autotrophs and heterotrophs create chemical energy from food
• Heterotrophs break down food that has been consumed
• Autotrophs break down food that they have produced
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Stages of Cellular Respiration
• Cellular Respiration happens in stages
• Very similar to photosynthesis, there are stages to cellular respiration– Glycolysis– Anaerobic cellular
respiration– Aerobic cellular
respiration
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Stages of Cellular Respiration
• Glycolysis happens first and will happen every time cellular respiration starts
• After that there are two different pathways that could be followed
• Aerobic respiration requires oxygen
• Anaerobic respiration does not require oxygen
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The Mighty Mitochondria
• Think back to cell as a city• What job did we give the
mitochondria?• The mitochondria has
two main areas• The matrix is the inner
space filled with fluid • The inner membrane is a
folded membrane on the inside the mitochondria
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The Mighty Mitochondria
• The aerobic parts of cellular respiration are performed in the mitochondria
• Every part of cellular respiration that involves oxygen is done in the mitochondria
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The Mighty Mitochondria
• Glycolysis happens in the cytoplasm
• The Krebs Cycle “Citrus Acid Cycle” happens in the matrix
• The process of oxidative phosphorylation happens in the inner mitochondria membrane
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Other Information
• Cellular respiration is an exergonic process
• This means it gives off energy
• The energy that it gives off can be measured
• We measure its energy in calories or kilocalories
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Other Information
• A calorie is the ability for a unit of energy to heat one gram (one mL) of water one degree Celsius
• A kilocalorie is the ability heat one kilogram of water (one L) one degree Celsius
http://foodmatters.tv/articles-1/the-30-worst-foods-in-america-beware
2,500,000 Liters
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Other Information
• Cellular respiration is not an exact process
• It can only harvest around 34% of the energy in a molecule of glucose
• Everything else is lost as heat