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| Science Forum Index » Bio Evolution Forum » Specifics from the Net... |
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| Tom Hendricks... |
 Posted: Tue Nov 03, 2009 7:17 am |
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Guest
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The following excerpted from this website
http://www.experiencefestival.com/a/Metabolism_-_Metabolic_pathways/id/595842
Why is it so easy to imagine mythical fire breathing dragons, and
flying horses, but impossible to see that
catabolic and anabolic processes have evolved, and evolved
separately? Here are some specifics:
Metabolism - Catabolism
Catabolic pathways that breakdown complex molecules into simple
compounds:
Cellular respiration, metabolic pathways that create energy (ATP and
NADPH) from fuel molecules. These pathways are also involved in the
digestion of food.
Carbohydrate catabolism
Glycogenolysis, the conversion of glycogen into glucose.
Glycolysis, the conversion of glucose into pyruvate and ATP, does not
require oxygen.
Embden-Meyerhof pathway, the common glycolysis pathway.
Entner-Doudoroff Pathway, an alternative glycolysis pathway in few
bacteria.
Pentose phosphate pathway (hexose monophosphate shunt), generation of
NADPH from glucose.
Protein catabolism, the hydrolysis of proteins into amino acids.
Aerobic respiration
Electron transfer chain
Oxidative phosphorylation
Anaerobic respiration,
Cori cycle
Lactic acid fermentation
Fermentation
Ethanol fermentation
_________________________
Metabolism - Anabolism
Anabolic pathways that create building blocks and compounds from
simple precursors:
Glycogenesis
Gluconeogenesis
Porphyrin synthesis pathway
HMG-CoA reductase pathway, leading to cholesterol and isoprenoids.
Secondary metabolism, metabolic pathways that are not essential for
growth, development or reproduction, but that usually have ecological
function.
Photosynthesis
Light-dependent reaction (light reaction)
Light-independent reaction (dark reaction)
Calvin cycle
Carbon fixation |
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