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3.7 Cell Respiration (Core)

3.7 Cell Respiration (Core). What you need to know:. 3.7.1 Define cell respiration . 3.7.2 State that, in cell respiration, glucose in the cytoplasm is broken down by glycolysis into pyruvate, with a small yield of ATP.

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3.7 Cell Respiration (Core)

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  1. 3.7 Cell Respiration (Core)

  2. What you need to know: 3.7.1 Define cell respiration. 3.7.2 State that, in cell respiration, glucose in the cytoplasm is broken down by glycolysis into pyruvate, with a small yield of ATP. 3.7.3 Explain that, during anaerobic cell respiration, pyruvate can be converted in the cytoplasm into lactate, or ethanol and carbon dioxide, with no further yield of ATP. 3.7.4 Explain that, during aerobic cell respiration, pyruvate can be broken down in the mitochondrion into carbon dioxide and water with a large yield of ATP.

  3. Remember! Respiration is not breathing! Respiration is a series of chemical reactions that occur in the cell to make ATP. All organisms respire. Aerobic respiration requires oxygen which is why we need to breathe.

  4. Define Cell Respiration Cell respiration is the controlled release of energy from organic compounds in cells to form ATP.

  5. Respiration is the controlledrelease of energy... Controlled by? Through what process? Enzymes End product inhibition

  6. sometimes this... ...from organic compounds... From this... or sometimes this...

  7. ...to form ATP. Adenosine triphosphate

  8. Watch this!

  9. ADP and ATP Respiration makes ATP from ADP (adenosine di-phosphate) and phosphate ions in the cell.

  10. What do we use this energy for?

  11. cell processes respiration

  12. ATP is not a stable long term energy store. Cells which need a lot of energy will have a lot of which organelle? So, how do humans store energy long term? Mitochondria generate ATP constantly in order to maintain a sufficient supply As glycogen in muscles, or as lipids in fat cells

  13. Aerobic Respiration Aerobic respiration requires oxygen The process starts in the cytoplasm and continues in the mitochondria. Which types of cells would have a lot of mitochondria? The first part of aerobic respiration is called glycolysis whch means “sugar splitting”.

  14. Carbon dioxide is excreted through gas exchange O O C C C C C C C Glucose (6C) ATP Cytoplasm ADP 2 x 3C pyruvate ATP ADP C C C C C C Mitochondrion Aerobic respiration produces large amounts of ATP O O Water is recycled in the cell H H Oxygen O

  15. Carbon dioxide is excreted through gas exchange O O C C C C C C C Glucose (6C) + ethanol ATP yeast (fermentation) ADP 2 x 3C pyruvate C C C lactic acid humans ATP ADP C C C Mitochondrion Cytoplasm Anaerobic respiration produces small amounts of ATP O O Oxygen

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