Chapter 20 lecture

Chapter 20 lecture -...

Info iconThis preview shows pages 1–21. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 20: Carbohydrate Biosynthesis in Plants and Bacteria Photosynthetic carbohydrate synthesis Photorespiration Starch and sucrose Cell wall polysaccharides Integration of carbohydrate metabolism ANABOLIC
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
animals CO 2 assimilation/carbon fixation
Background image of page 2
Plastids Site of biosynthesis Episome
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Overall: 3 CO 2 + 3 R 1,5 Bisphosph 6 Glyceraldehyde 3 P CO 2 assimilation: the Calvin Cycle
Background image of page 4
Ribulose 1,5-bisphosphate carboxylase (rubisco) 8 L and 8 S subunits/550,000 MW/most abundant protein in the world (250 mg/ml)
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Ribulose 1,5- bisphosphate Mg Carbamylated lysine
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Regulation of rubisco…. Rubisco is inactive until carbamoylated Ribulose 1,5-bisphophate inhibits carbamoylation Rubisco activase removes ribulose 1,5-diphosphate in a ATP-dependent rxn Allows lysine to be carbamoylated
Background image of page 14
2 nd stage of CO 2 assimilation
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3 rd stage of CO 2 assimilation Interconversion of triose phosphates to pentose phosphates
Background image of page 16
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 18
Background image of page 19

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Three turns of cycle converts 3 CO 2 to glyceraldehyde 3 P i 3 Ribulose 1,5 BisPhos + 3 CO 2 6 3-phosphoglyerate 6 glyceraldhyde 3-Pi 5 glyceraldehyde 3 Pi 3 Ribulose 1,5 BisPhos NADH and ATP via light rxn
Background image of page 20
Image of page 21
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/25/2010 for the course CHEM 142b taught by Professor Perona,j during the Spring '08 term at UCSB.

Page1 / 39

Chapter 20 lecture -...

This preview shows document pages 1 - 21. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online