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National 4/5 Biology

National 4/5 Biology. Respiration c. ATP and the chemistry of respiration. What have I learned?. White boards Answer the following: What is respiration? What raw materials are required for respiration to take place? How do these raw materials enter the cells?

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National 4/5 Biology

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  1. National 4/5 Biology Respiration c. ATP and the chemistry of respiration

  2. What have I learned? • White boards • Answer the following: • What is respiration? • What raw materials are required for respiration to take place? • How do these raw materials enter the cells? • What are the products of respiration? • Where in the body does respiration occur? • Suggest a cell(s) that may have a lot of mitochondria?

  3. What are we learning today? We are learning to: • State what ATP is? • State what ATP is used for? • Describe the processes involved in aerobic respiration Success criteria: • ATP and how it supplies energy • Aerobic respiration in terms of glycolysis and how many ATP are produced

  4. Adenosine Triphosphate (ATP) Adenosine Pi Pi Pi • ATP is an immediate stored source of energy found in most cells • ATP has the following structure 3 molecules of inorganic phosphate 1 molecule of adenosine

  5. What is ATP? cont’d • For the energy stored in ATP to be released it has to be broken down to ADP and Pi releasing energy ATP ADP + Pi high energy build up requiring energy low energy • When energy is stored ADP and Pi are converted back into ATP

  6. Role of ATP • ATP makes energy available for energy requiring processes: • - muscular contraction • - cell division • - protein synthesis • - transmission of nerve impulses • ATP is the link between energy consuming, and energy releasing reactions

  7. Chemistry of Respiration • Respiration is the re-generation of ATP • It is a complex series of biochemical reactions

  8. Aerobic RespirationWhat is involved? • Occurs in presence of oxygen • Glycolysis • Means glucose splitting • Glucose is split into 2 molecules of pyruvic acid • The pyruvic acid goes through many more enzyme controlled reactions releasing carbon dioxide and finally producing water • As the reactions proceed ATP is generated • 38 ATP molecules are produced for every molecule of glucose

  9. Recap Write an exit summary to tell me the following: • What is ATP? • What is ATP used for? • How does ATP supply energy? • Describe the processes involved in aerobic respiration: • What is glycolysis? • What is glucose split in to? • How many ATP are produced per glucose molecule?

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