Page 52 - Color Atlas of Biochemistry
P. 52

Carbohydrates         43


                 A. Cellulose

                                Microfibril
                                                                                                    Pectin
                  Elementary                                                           2    2
                  fibril                                                              Ca  Ca





                 2.
                                                                                                  Hemi-
                                                                                                  cellulose


                 1.





                                                6                                               Cellulose
                                       β   4                  3.                Extensin        microfibril
                          3     2   1            5
                     4       5                    2      1
                                             3
                         6

                                                                              Mitochondria
                        Golgi apparatus
                                                                                   Nucleus
                        Endoplasmic
                        reticulum
                                                                                       Plasma membrane



                 B. Starch

                                                                                       Vacuole
                          Chloroplasts



                    Plant cell
                                         Starch                             Starch



                            1. Amylose 20%                               2. Amylopectin 80%



                                                                  OH
                                                                   O                        OH
                                                                                          O
                                                                                      O
                                                                     O     OH                      O
                          1                                     OH
                                                                  O        O                   HO
                             α                                                           OH
                                                                         6   1 α        O        O
                                                                     O     O
                         4                                                  O        O    HO  O
                                                                              1α
                                                                            O             O
                                                                               4       O
                                                                                     O
                                                                                O
                                                                               O
                                                                          HO    Reducing end





           Koolman, Color Atlas of Biochemistry, 2nd edition © 2005 Thieme
           All rights reserved. Usage subject to terms and conditions of license.
   47   48   49   50   51   52   53   54   55   56   57