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14 terms

Fermentation and Secondary Metabolism

chapter 7 part b
STUDY
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anaerobic metabolism
two stages:
uses substances other than O2 as final election acceptor in electron transport chain
produce ATP only via substrate-level phosphorylation
obligated
can't have O2
facilitated
can have either O2 or none
ABE Fermentation
acetone-butanol-ethanol- bacterial fermentation from starch
primary metabolism
essential for cell structure and function
secondary metabolism
synthesis of secondary metabolites that are not necessary for cell structure and growth
secondary metabolites
unique to species or group
role in defense attraction, protection competition
phenolics
antioxidants with intense flavors and smells; simple sugars, benzene rings
alkaloids
bitter tasting molecule for defense; contain N
terpenoids
intense smalls and colors; mostly C and H
polyketides
ringed structures; chemical weapons, antibiotics
address specific targets, modify gene/protein splice
four categories of secondary metabolism
phenolics alkaloids terpenoids polyketidies
camptothecin
alkaloid, "tree of joy" potential anti tumor agent
taxol
class of terpenoids isolated from paid yew bark
treat breast tissue, ovarian, and lung cancer