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Cellular respiration

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Title: Cellular respiration Author: Ranjan Ganguly Last modified by: Sys Admin Created Date: 4/16/2002 12:28:02 AM Document presentation format: On-screen Show – PowerPoint PPT presentation

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Title: Cellular respiration


1
Cellular respiration
  • Stepwise series of reactions that release energy
    as they break down complex molecules to carbon
    dioxide and water
  • Some of the energy released is stored in ATP

2
Raw materials for aerobic respiration
carbohydrates,fats, proteins During cellular
respiration the energy stored in glucose is
broken down C6H12O6 6O2 ? 6CO26H2Oenergy
3
Steps of aerobic respiration
  • Glycolysis glucose split into 2 3-carbon
    molecules (Pyruvate)
  • 4 molecules ATP forms
  • 3-carbon molecules breakdown(require O2)

4
2 pyruvate molecules are broken down to acetate
CO2 Carrier molecule Coenzyme A (CoA) picks up
acetate and forms Acetyl-CoAgoes to mitochondria
and the Krebs cycle
5
Acetyl CoA goes through a number of different
steps to ultimately produce 38 molecules of
ATP
6
Summary of glucose breakdown
7
(No Transcript)
8
Anaerobic respiration pathway Lactic acid
fermentation After formation of pyruvate , lack
of oxygen forms lactate (3 carbon) Alcoholic
fermentation- acetic acid(yeast) and vinegar
(bacteria ) Produces 2 ATP
9
(No Transcript)
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