BIOC 431 Exam 3 F12

Write a balanced equation showing the conversion of

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: sible under cellular conditions. Describe these rearrangements. (4 points) 6- phosphonoglucolactone undergoes spontaneous ring opening with a large negative free energy to produce the gluconate The β- keto acid intermediate generated by 6- phosphonogluconate dehydrogenase undergoes spontaneous, irreversible elimination of CO2 [3] The reductive pentose phosphate pathway (or Calvin cycle) incorporates CO2 into organic compounds through the activity of the enzyme Rubisco. (a) The products of Rubisco are converted to glyceraldehyde- 3- phosphate by two enzymes of gluconeogenesis. Write a balanced equation showing the conversion of the CO2 fixation products to glyceraldehyde- 3- phosphate. (6 points) 3- phosphoglycerate + ATP + NADPH - > glyceraldehyde- 3- phosphate + ADP + Pi + NAD+ Page | 2 (b) The net gain after three cycles of the reductive pentose phosphate pathway is one molecule of triose- phosphate. This is exported from the chloroplast by facilitated diffusion in exchange for inorganic phosphate. i. H...
View Full Document

Ask a homework question - tutors are online