OBJ: Given lab SWBAT explain how the organs of the digestive system work together to break down food...
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Transcript of OBJ: Given lab SWBAT explain how the organs of the digestive system work together to break down food...
OBJ: Given lab SWBAT explain how the organs of the digestive system work together to break down food and absorb nutrients with 70% accuracy.
BRING IN TEXTBOOKDN: HW check- Final Digestion and Absorption Booklet;Review Procedures (lab, glue stic, scissors, colored pencils)
ACT: Construct Paper Model of Digestive System (Color, Cut, Arrange in proper order, paste (glue stic), label part & describe function)
Work on lab questions
HW: Complete Paper Model and Lab Questions (Lab due Monday, Feb 23); Complete SMSD Review Sheets; SMSDFE Exam, Feb 25; Winter Recess: Complete NYSSAE 2008 Exam (Q: 1-81, on scantron; due Monday, Feb 23).
MouthEsophagus
Stomach
LiverGallbladderPancreas
Small IntestineLarge Intestine
RectumAnus
Dig
esti
on
Beg
ins
Fin
al D
ige
sti
on
& A
bs
orp
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Mouth: Chemical digestion of starch (carbohydrate); Mechanical digestion: chewing, grinding
Esophagus: tube connecting mouth to stomach; peristalic contractions
Stomach: hold/store food; Mechanical digestion: churning;
Chemical digestion: break down of proteins (HCL acid, pepsin enzyme)
Liver: process medicine, alcohol; remove nitrogen; produce bile (breakdown fats)
Pancreas: enzyme production to breakdown fats, carbohydrates, proteins
Small Intestine: most chemical digestion; absorption of nutrient molecules into circulatory system (capillaries) by osmosis through villi/microvilli wall.
Large Intestine: remove water, produce vitamin K (clotting blood)
Rectum: store solid waste (Excretory) Anus: opening/exit solid waste