Digestive system. Function : Converts food into nutrients (macromolecules) that can be used by cells Absorbs food Eliminates wastes. Invertebrate organs : mouth, gastrovascular cavity, digestive sac, gizzard, crop,and intestines Main Vertebrate organs :
Compare the digestive tracts of herbivores and carnivores?
Pancreas (behind stomach)
Gallbladder (behind liver)
RectumFigure 38–10:The Human Digestive System (pg. 979)
How are macromolecules transported to the cells of your body? Hint: name the body system
The small intestine is where nutrients are absorbed from chyme (chewed –up food from the stomach).
Special structures in the small intestine called villi help absorb the essential nutrients from chyme.
Why does the small intestine have circular folds?
Hint: the mitochondria and chloroplast have folds for the same reason.