Activité 2 : La digestion des aliments dans le tube digestif
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1-Souligner dans les deux textes le rôle des dents et des muscles de l’estomac.
2-Déduire l’action des muscles et de l’estomac dans la digestion des aliments.
3- Comparez la composition avant et après la mastication
4- Déterminez le facteur responsable de la simplification dans la bouche des aliments.
5- Comparer la composition du bol alimentaire au début et après 5h de son séjour dans l’estomac.
6- Déterminez le facteur responsable de la simplification des aliments dans l’estomac.
7-Comparer la composition du chyme avant et après son séjour dans l’intestin grêle.
8-Déterminez les facteurs responsables de la simplification des aliments dans l’intestin grêle.
9-Déduire le devenir des aliments dans le tube digestif.
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DIGESTION
ACTION MECANIQUE
DIGESTION CHIMIQUE
DIGESTION
ACTION MECANIQUE
DIGESTION CHIMIQUE
Organisation de l’appareil digestif
Anatomie de l’appareil digestif chez l’homme
Relation duodénum et autres organes de l’appareil digestif
Organisation de l’appareil digestif
Anatomie de l’appareil digestif chez l’homme
Relation duodénum et autres organes de l’appareil digestif
Exercices
Corrigé des exercices
Exercices
Corrigé des exercices
