BIOL 3210 Lecture Notes - Lecture 42: Disulfide, Decarboxylation, Triose
Document Summary
Don"t memorize this, but it makes sense if you look at the arrows. One co2 = one turn of calvin cycle = one triose phosphate produced. Most steps are devoted to the regeneration. Pentose phosphate pathway looks a lot like the calvin cycle in reverse. Nadph is an electron donor: reductive biosynthesis, if we make something that has to be reduced, we use nadph, it repairs oxidative damage. Ros (talked about in presentations) is oxidizing. You have to reduce to get rid of the oxidative damage. Five c sugars: used in dna/ rna synthesis as the nucleotides, synthesis of some coenzymes. Two stages: decarboxylation and oxidative phase, lose co2 to get to a 5c sugar from a 6c, reduced nadp+ Regeneration: don"t need to memorize, uses transketolase and aldases, isomerases and epimerases get the molecule into a slightly different form. The calvin cycle and the pentose phosphate pathway are mirror images (probably on the exam)
