Respiration

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Author:
thinkrussia
ID:
144471
Filename:
Respiration
Updated:
2012-03-28 20:30:29
Tags:
Respiration
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Description:
Biology DAT 8
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  1. Do CH bonds or CO2 bonds release more energy
    CH bonds release a lot of energy while CO2 bonds contain little energy
  2. What is glycolysis?
    • a glucose molecule is broken down into 2 pyruvate molecules
    • 2 ATP produced
    • 2 NADH produced
  3. Explain what fermentation is?
    • Without oxygen, NAD+ needs to be regenerated for glycolysis, so it is reduces to ethanol or lactic acid.
    • 2 ATP produced
  4. Where does glycolysis occur?
    in the cytoplasm
  5. How much ATP is produced in cellular respiration?
    36
  6. Where does the Krebs cycle occur?
    in the matrix of the mitochondria
  7. Where is the electron transport chain?
    inside of the inner mitochondrial membrane
  8. Do fats or carbohydrates yield a higher percentage of ATP per gram?
    fats
  9. What does the respiratory system of an arthropod consist of?
    tracheae tubules that lead to openings called spiracles
  10. What is the pathway of air in humans?
    nose, pharynx, larynx, trachea, bronchi, bronchioles, alveoli
  11. What contracts during inhalation?
    diaphram and external intercostal muscles
  12. What contracts during exhalation?
    nothing :)
  13. At the gas exchange site, what happens?
    CO2 is diffused into lungs and O2 is diffused into blood

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