The regeneration phase of the Calvin Cycle, where five 3-carbon sugars become three 5-carbon sugars, shares many intermediates with more familiar biochemical pathways. For 10 points each:
[10h] The end product of the regeneration phase is this 5-carbon sugar, which is then phosphorylated to restart the Calvin Cycle. This is also the end product of the oxidative phase of the pentose phosphate pathway.
ANSWER: ribulose-5-phosphate [or Ru5P or RuP]
[10e] The regeneration phase shares intermediates like glucose-6-phosphate and fructose-6-phosphate with both the pentose phosphate pathway and this other pathway, the first phase of cellular respiration.
ANSWER: glycolysis [accept Embden–Meyerhof–Parnas pathway or EMP]
[10m] The regeneration phase begins with this 3-carbon sugar’s conversion to DHAP, which is then combined with another copy of this sugar by aldolase to form fructose 1,6-bisphosphate. Those reactions are both the reverse reactions of reactions producing this first 3-carbon sugar intermediate in glycolysis.
ANSWER: G3P [or glyceraldehyde 3-phosphate; accept 3-phosphoglyceraldehyde; accept PGAL, GA3P, GADP, GAP, or GALP; prompt on triose phosphate or TP]
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