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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