Powerpoint Presentation on Process on Digestion, Respiration, and Circulation by iig15570

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									                                                                               03/15/2010




 Chemical Energy                           Digestion to Absorption
   Fat,
    carbohydrates,
    protein provide
     Energy
     Buildingblocks for
      biosynthesis
        When body fat
        is exhausted
        protein is lost at
        accelerating
        rate, with dire
        consequences




                                           Fat Digestion
Absorbable
monosaccharides




                                            Regulating Glucose in Blood
                             Hormones
                             are
                                                                  Insulin helps
                             involved in                           glucose enter
                             digestive                             cells
                                                                  Lack of insulin
                             feedback                              more important
                             loops                                 than presence of
                                                                   glucagon
                                                                  Nervous system
                                                                   uses only glucose




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                                       Water balance maintains cell
Fuel traffic                x          size/shape




                                       Economics of N-waste
                         Nitrogenous
                                                        C/N     kJ/mol         Toxicity       Water
                         wastes
                                                                                              req’ts

                                       Ammonia           0        378            ***           ***

                                         Urea           0.5       638             **            **

                                       Uric acid        1.25     1932             *             *




 Artemia, brine shrimp
                                       Sea Water & Body Fluids
                          +OP


                                       (mmoles/L)               Na      Mg      Ca     K        Cl

                                       Sea Water                478.3   54.5    10.5   10.1     558.4

                                       Polychaete (Aphrodite)   476     54.6    10.5   10.5     557

                                       Sea urchin (Echinus)     474     53.5    10.6   10.1     557

      -OP                              Isopod (Ligia)           566     20.2    34.9   13.3     629

                                       Lobster (Nephrops)       541     9.3     11.9   7.8      552




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Earthworm excretion                     Insect, spider, & scorpion excretion




             Nephrons in
             human kidneys



                                                                                      Site of Filtration


                                                                                          Site of
                                                                                          tubular
                                            Urine
                                                                                       secretion and
                                         processing
                                                                                        absorption
                                             and
                                         elimination




                                          Hormonal control of BP


                      Countercurrent
                      multiplier
                      produces
                      concentrated
                      urine


                                       Angiotensin also constricts efferent renal arterioles and causes
                                       release of aldosterone, which stimulates Na reabsorption.




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              03/15/2010




Hormonal
 control &
relation to
circulation




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