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Published byBlaze Eaton Modified over 9 years ago
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AIM: How do mitochondria make ATP energy for cells?
DO NOW: Where would we find more mitochondria: muscle cells or skin cells? Why? Where can we find mitochondria?
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Cellular Respiration Process that takes energy from sugar molecules (organic molecules) & places it into molecules of ATP Glucose (sugar) energy is converted into ATP energy ATP is the usable form of energy for all living things Requires oxygen aerobic respiration Takes place in mitochondria of both animal & plant cells
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Mitochondrion
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Let’s Look at the Reaction!
Glucose & Oxygen Carbon Dioxide & Water & ATP WORD EQUATION C6H 12O6 & O2 CO2 & H2O & ATP CHEMICAL EQUATION Question: What are the reactants / substrates in the reaction? Question: What are the products of the reaction?
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Question What kind of organic catalysts are involved in cellular respiration? Hint: They speed up the rate of this reaction, making it more efficient! Answer:___________________
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ATP Breakdown ATP energy, which has 3 phosphate groups, is released, when it is broken down into a molecule called ADP, which has 2 phosphate groups
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Common Misconceptions
Cellular respiration is breathing it’s not! It is a chemical form of respiration Typical respiration is a physical process & involves the exchange of gases which are needed for cellular respiration Inhaling & exhaling does not give you ATP energy
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Humans & Anaerobic Respiration
At times, humans may be forced to get energy by way of Anaerobic Respiration (without using oxygen) we produce LACTIC ACID, during these times, which accumulates in our muscles, & causes the “burn” & pain that you feel Ex. strenous exercise Less efficient or less ATP made
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Q: What will build up in this girl’s muscles?
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Brain-Pop Video
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Homework Read textbook pages & on page 221, answer questions 1, 3, and 4 Write out questions & answers
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