330JP19 - BISC 330L Dr. John Petruska 330JP19.ppt Lect. 18...

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BISC 330L Dr. John Petruska 330JP19.ppt Lect. 18 and Lecture 19 References: (3rd Ed 2005), Chap. 21.7, 18.3 (6th Ed 2007), Chap. 20.1, 16.1
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Stryer Fig. 20.12 Calvin cycle details showing 6 turns of cycle are needed to convert 6 CO 2 to glucose. Compare this to Fig. 21.24 in Garrett & Grisham.
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Fig. 21.24 The Calvin-Benson cycle of reactions .
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(See Table 21.1, p. 697, showing the 15 enzymatic reactions involved): 1. Rubisco reaction summary: C 1 + C 5 -> 2 C 3 or simply (1) +(5) -> 2(3) Note how 3-carbon sugars, abbreviated (3), are used by aldolase and For 6 turns of cycle needed to make 1 glucose from 6 CO 2 : 1. Rubisco: 6(1) + 6(5) -> 12(3) 5. Aldolase: 3(3) + 3(3) -> 3(6) 9. Transketolase: 2(6) + 2(3) -> 2(5) + 2(4) 10. Aldolase: 2(4) + 2(3) -> 2(7) 12. Transketolase: 2(7) + 2(3) -> 4(5)
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This note was uploaded on 05/03/2010 for the course BISC 330L taught by Professor Petruska,tower during the Spring '07 term at USC.

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330JP19 - BISC 330L Dr. John Petruska 330JP19.ppt Lect. 18...

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