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PO<br />

glycolysis<br />

CO 2<br />

phosphoenol pyruvate<br />

CO 2<br />

O<br />

pyruvate<br />

SCoA<br />

O<br />

acetyl coenzyme A<br />

CoAS<br />

O<br />

O<br />

acetoacetyl coenzyme A<br />

Primary Metabolism - Overview<br />

PHOTOSYNTHESIS<br />

Primary metabolism<br />

CO 2 + H 2O<br />

HO<br />

HO<br />

O<br />

HO<br />

HO<br />

OH<br />

glucose<br />

& other 4,5,6 & 7 carbon sugars<br />

+<br />

PO<br />

HO O<br />

OH<br />

erythrose-4-phosphate<br />

Citric acid<br />

cycle<br />

(Krebs cycle)<br />

1) 'light reactions': hv -> ATP and NADH<br />

2) 'dark reactions': CO 2 -> sugars (Calvin cycle)<br />

SCoA<br />

O<br />

malonyl coenzyme A<br />

HO<br />

CO 2<br />

HO OH<br />

OH<br />

shikimate<br />

aromatic amino acids<br />

aliphatic amino acids<br />

CO 2<br />

HO<br />

mevalonate<br />

CO 2<br />

Primary metabolites<br />

oligosaccharides<br />

polysaccharides<br />

nucleic acids (RNA, DNA)<br />

peptides<br />

proteins<br />

tetrapyrroles (porphyrins)<br />

saturated fatty acids<br />

unsaturated fatty acids<br />

lipids<br />

Secondary metabolites<br />

SHIKIMATE METABOLITES<br />

cinnamic acid derivatives<br />

aromatic compounds<br />

lignans, flavinoids<br />

ALKALOIDS<br />

penicillins<br />

cephalosporins<br />

cyclic peptides<br />

FATTY ACIDS & POLYKETIDES<br />

prostaglandins<br />

polyacetylenes<br />

aromatic compounds, polyphenols<br />

macrolides<br />

ISOPRENOIDS<br />

terpenoids<br />

steroids<br />

carotenoids

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