Respiration Liza Pryor, Sarah Mead
What is cell respiration? <ul><li>The controlled release of energy from organic compounds in cells to form ATP </li></ul><...
Glycolysis: <ul><li>A chain of reactions carried out in the cell which convert glucose into pyruvate.  </li></ul><ul><li>P...
Anaerobic respiration:  <ul><li>This is when a organism can make energy with out oxygen needing to be present </li></ul><u...
Aerobic respiration: <ul><li>If a cell has access to oxygen, pyruvate can be oxidized to release more energy </li></ul><ul...
Oxidation and Reduction <ul><li>Oxidation and reduction always occur together </li></ul><ul><li>Oxidation: loss of electro...
Krebs Cycle <ul><li>series of reactions that produce energy-storing molecules during aerobic respiration </li></ul><ul><li...
Electron Transport Chains <ul><li>Electron transport chains – set of chemical reactions </li></ul><ul><li>- Take place in ...
Structure and format <ul><li>Mitochondrion structure and function  </li></ul><ul><li>Cristae </li></ul><ul><ul><li>Large s...
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Respiration

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Respiration

  1. 1. Respiration Liza Pryor, Sarah Mead
  2. 2. What is cell respiration? <ul><li>The controlled release of energy from organic compounds in cells to form ATP </li></ul><ul><li>The energy that is made here is used for: </li></ul><ul><ul><li>Synthesizing large molecules like DNA,RNA, and proteins </li></ul></ul><ul><ul><li>Pumping molecules or ions across membranes by active transport </li></ul></ul><ul><ul><li>Moving things around the inside of the cell, such as chromosomes. </li></ul></ul>
  3. 3. Glycolysis: <ul><li>A chain of reactions carried out in the cell which convert glucose into pyruvate. </li></ul><ul><li>Produces ATP without using oxygen </li></ul><ul><li>Takes place in the cytoplasm </li></ul><ul><li>Produces 2 ATP </li></ul><ul><li>ATP is used as energy for phosphorylating sugar </li></ul><ul><ul><li>Phosphorylation: Phosphate is added to an organic molecule (glucose) and it is transformed, using ATP, into fructose biphosphate. The fructose biphosphate then splits into two triose phosphate molecules. These are then oxidized to produce the energy needed to make ATP </li></ul></ul><ul><ul><li>Oxidation: Removing the hydrogen atoms </li></ul></ul><ul><ul><li>Lysis: The breaking down of glucose </li></ul></ul>
  4. 4. Anaerobic respiration: <ul><li>This is when a organism can make energy with out oxygen needing to be present </li></ul><ul><li>If there is no oxygen available only glycolysis ATP can be produced </li></ul><ul><li>In the anaerobic conditions present here it can only continue if the pyruvate is converted into other substances. </li></ul>
  5. 5. Aerobic respiration: <ul><li>If a cell has access to oxygen, pyruvate can be oxidized to release more energy </li></ul><ul><li>Energy released from this process is used to make ATP </li></ul><ul><li>More than 10 times as much ATP produced than glycolysis </li></ul><ul><li>This is divided into two parts </li></ul><ul><ul><li>The Krebs Cycle </li></ul></ul><ul><ul><li>Electron Transport Chain </li></ul></ul>
  6. 6. Oxidation and Reduction <ul><li>Oxidation and reduction always occur together </li></ul><ul><li>Oxidation: loss of electrons from a substance </li></ul><ul><ul><li>Frequently involves gaining oxygen or losing hydrogen </li></ul></ul><ul><li>Reduction: gain of electrons </li></ul><ul><ul><li>Frequently involves losing oxygen or gaining hydrogen </li></ul></ul>
  7. 7. Krebs Cycle <ul><li>series of reactions that produce energy-storing molecules during aerobic respiration </li></ul><ul><li>Each turn of the Krebs cycle produces 3 NADH, 1 FADH2, 2 CO2, and 1 ATP </li></ul><ul><li>Can also be known as critic acid cycle </li></ul>
  8. 8. Electron Transport Chains <ul><li>Electron transport chains – set of chemical reactions </li></ul><ul><li>- Take place in inner membrane </li></ul><ul><li>Transport H+ ions across the membrane </li></ul><ul><li>Ends with the oxidation of NADH </li></ul>
  9. 9. Structure and format <ul><li>Mitochondrion structure and function </li></ul><ul><li>Cristae </li></ul><ul><ul><li>Large surface area for electron transport chains </li></ul></ul><ul><li>Space between inner and outer membranes </li></ul><ul><ul><li>Proton accumulation </li></ul></ul><ul><li>Matrix </li></ul><ul><ul><li>Contains enzymes </li></ul></ul>

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