Aerobic And Anaerobic Respiration
Visão Geral
Sprint for the bus and your muscles keep working long after your lungs can supply enough oxygen to fully power them. That is only possible because cells have two ways to release energy from glucose: a slow, complete route that needs oxygen, and a fast, incomplete backup route that does not. This topic covers both, the molecule that actually carries the released energy to where it is needed, and the practical evidence, from your own breath, that respiration is happening right now.
You need the word and balanced symbol equation for aerobic respiration, the word equation for anaerobic respiration in humans, a clear explanation of why the two processes release such different amounts of energy, and the role of ATP in transferring that energy to where the cell can use it.
Objetivos
- Know that the process of respiration releases energy in living organisms
- Investigate the difference between inspired and expired air for carbon dioxide concentration
- Know the word equation and the balanced chemical symbol equation for aerobic respiration in living organisms
- Know the word equation for anaerobic respiration
- Explain the differences between aerobic and anaerobic respiration
- Understand the role of ATP in energy transfer (addition and removal of a phosphate group and associated energy requirement and release)
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- Which gas is required for aerobic respiration but not for anaerobic respiration? A) Carbon dioxide B) Nitrogen C) Oxygen D) Hydrogen Answer: C
- What is the product of anaerobic respiration in human muscle cells? A) Ethanol B) Lactic acid C) Carbon dioxide only D) Water only Answer: B
- ATP is formed when: A) A phosphate group is removed from ADP B) A phosphate group is added to ADP C) Glucose is broken down to lactic acid D) Oxygen combines with carbon dioxide Answer: B
- Which test can be used to show that expired air contains more carbon dioxide than inspired air? A) Iodine test B) Benedict's test C) Limewater test D) Biuret test Answer: C
- Why does aerobic respiration release more energy per glucose molecule than anaerobic respiration? A) It uses less glucose B) It completely breaks down glucose to carbon dioxide and water C) It happens faster D) It does not involve ATP Answer: B
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ATP: Adenosine Triphosphate
Explain the role of ATP as the cellular energy currency
"Biology: ATP: Adenosine Triphosphate" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/6-4-atp-adenosine-triphosphate. Access for free at https://openstax.org/books/biology/pages/1-introduction
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