Ramon Flashcards
what type of environment is required for radical chemistry
anaerobic environment
what is ferric and when is it soluble
iron with an oxidation of +3
only soluble in pH lower than 3
what is ferrous where is it soluble
iron with an oxidation of 2+
very strong reducing conditions
what are the siderophores in siderophore ferrichrome based on
hydroxamate
what is ferrichrome composed of
3 glycine
3 N-hydroxyl-L-ornithine
what is the affinity of siderophore enterobactin for iron +3 and what does it mean
Ka = around 10 to the power of 50
means bacteria can erode steel constructions
what is do siderophores have a low affinity for
Fe 2+
what protein transfers iron around
transferrin
how does transferrin transport iron
binds Fe(III) to carbonic acid (HCO3-)
what does Fe (III) transferrin contain
carbonate CO3-
what is ferritin
iron storage protein
how many Fe(III) atoms does ferritin store
4500 atoms
why do iron levels need to be managed in the body
iron is toxic
cannot be excreted
what is rock crab cancer productus
purple coloured blood caused by hemocyanin
what is hemocyanin and what organisms contain it
2 copper ions coordinated by histidines
found in arthropods and molluscs
