Page 69 - SUBSEC October 2017_Neat
P. 69

UNIT 2
               MODULE 1: BIOENERGETICS AND CONSERVATION (cont’d)


                SPECIFIC OBJECTIVES                 EXPLANATORY NOTES            SUGGESTED PRACTICAL
                                                                                 ACTIVITIES

                2.      2Cellular Respiration and ATP Synthesis
                        .
                Students should be able to:

                2.1.     explain  the  sequence  of   Explanation  of      the
                         steps in glycolysis;        stepwise      breakdown  of
                                                     glucose    in    cellular
                                                     respiration;  Names  of
                                                     enzymes  not  required.
                                                     Include    the     initial
                                                     phosphorylation       of
                                                     glucose,  lysis  into  two  3-
                                                     carbon  compounds  and
                                                     the          subsequent
                                                     production of pyruvate, a
                                                     small  yield  of  ATP  and
                                                     reduced NAD. Recognition
                                                     of  simplified  structural
                                                     formulae intermediate.

                2.2.     describe  the  structure  of  a   Include   annotated
                         mitochondrion,  relating  its   diagrams.
                         structure to its function;

                2.3.     state the fate of pyruvate in   Pyruvate   enters   the   Design  and/or  investigate
                         the  cytosol  when  oxygen  is   matrix and is converted to   the rate of oxygen uptake
                         available;                  acetyl  CoA  via  oxidative   during     respiration    using
                                                     decarboxylation.            a    simple respirometer.

                2.4.     explain  the  significance  of   Explanation  of  the  Krebs
                         the  Krebs  cycle  in  ATP   Cycle. Details of structures
                         formation;                  of   intermediates   not
                                                     required.     Emphasise
                                                     production  of  NADH  and
                                                     FADH2;  oxidation  and
                                                     decarboxylation.












                            CXC A10/U2/17
                                                                  31
   64   65   66   67   68   69   70   71   72   73   74