Post on 29-Jun-2020
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Ch 9: Metabolism – Catabolism: Glycolysis, Cellular Respiration &
Fermentation
controlled
ΔG = - 686 kcal/mole of glucose -> CO2 + H2O
For eukaryotes
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process used ecogroup nutritional group (energy + carbon)
respiration consumers chemoheterotrophs (aerobic & anaerobic)
O2-photosynthesis producers photoautotrophs ~in-between photoheterotrophs**
*Non-O2 PS producers photoautotrophs ~in-between photoheterotrophs
chemosynthesis* producers chemoautotrophs
fermentation consumers chemoheterotrophs
glycolysis alone* consumers chemoheterotrophs
* = prokaryotic only ** rare
Functional group transfer or release:
Substrate-level phosphorylation
Oxidative phosphorylation Photophosphorylation
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Functional group transfer or release:
Decarboxylation
Redox reaction:
dehydrogenation of food & hydrogenation of NAD+
transfer H atoms
Internal rearrangement
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Glycolysis
Glycolysis: the basics
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Glycolysis: Energy investment
what happens?
Glycolysis: Energy capture/ payoff
what happens?
Glycolysis: the basics
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Preparatory/Transition Reaction: pyruvate oxidation
Any ATP produced?
Hans Krebs
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Why citric acid cycle?
Citric acid cycle: the basics
Citric acid cycle: what happens?
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What are the changes in free energy? (from: http://www.uic.edu/classes/bios/bios100/lectures/respiration.htm)
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Electron Transport Chain
(energy relationships)
Peter Mitchell
John Walker
Paul Boyer
How does ATP synthase work?
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Why is this important?
Catabolism of food
Some controls on the system
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How a body is built
Pyruvate is a decision point
2 examples of fermentation (there are more)
why?
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http://cmapspublic2.ihmc.us/rid=1K6M2RXWB-YSQB36-14CV/15.4%20The%20Comparisons%20Between%20Aerobic%20and%20Anaerobic%20Respiration.cmap?rid=1K6M2RXWB-YSQB36-14CV&partName=htmljpeg
NO
True