Page 76 - SUBSEC October 2017_Neat
P. 76

UNIT 2
               MODULE 2: BIOSYSTEMS MAINTENANCE (cont’d)


                SPECIFIC OBJECTIVES                 EXPLANATORY NOTES            SUGGESTED PRACTICAL
                                                                                 ACTIVITIES

                The Circulatory System of Mammals (cont’d)

                Students should be able to:

                3.5.     explain   the   role   of   Flow charts not required.
                         haemoglobin in oxygen and
                         carbon dioxide transport;

                3.6.     describe oxygen dissociation   Interpretation of data.
                         curves     for      adult
                         haemoglobin; and,

                3.7.     explain  the  significance  of
                         the effect of carbon dioxide
                         on   oxygen   dissociation
                         curves (Bohr Effect).

                4.       Homeostasis and Hormonal Action

                Students should be able to:

                4.1.     discuss   the     concept    Receptors,  effectors,  set
                         homeostasis;                point,   feedback   and
                                                     homeostatic  equilibrium.
                                                     Emphasise  the  dynamics
                                                     of feedback mechanisms.

                4.2.     outline   the     general   Ductless    glands    in
                         principles   of   hormonal   animals;  target  cells  and
                         action in animals;          receptors.

                4.3.     explain  how  insulin  and
                         glucagon  regulate  blood
                         glucose concentration;

                4.4.     discuss  the commercial  use   Mention   the   gaseous   Simple  experimental  with
                         made    of   ethylene   in   nature of ethylene and its   relevant  control  using
                         supplying    market-ready   effect   on   respiration.   fresh  fruit  only  versus
                         fruit.                      Types   of   fruits   not   fresh  and  ripening  fruit
                                                     required.                   can   demonstrate    the
                                                                                 effect      of  ethylene
                                                                                 (ethene) on fruit ripening.





                            CXC A10/U2/17
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