how
does pancreatic juice enter the alimentary canal?
what does bile contribute to digestion?
how does bile enter the alimentary canal?
what happens to Bilirubin as it is eliminated from the
body?
B. PROTEINS
1. Chemical digestion of proteins by enzymes first begins in the
stomach. Name the gastric enzyme that initiates protein digestion.
Explain how this enzyme is activated.
2. Pancreatic juice contains enzymes which digest proteins
including trypsin and chymotrypsin. Name the ducts in the pathway
by which pancreatic juice flows from the pancreas to the
duodenum.
3. The products of chemical digestion of dietary proteins are
amino acids (protein subunits), which are then absorbed into the
bloodstream. Describe 3...
Shark
60cm alimentary canal
42cm body length
frog
18cm alimentary canal
28 cm body length
rat
40cm alimentary canal
16.8 cm body length
human
194cm alimentary canal
57 cm body length
How does the length of the alimentary canal correlate with the
diet of an organism?
How does the length of the alimentary canal correlate with the
metabolic activity level of the organisms?
How does the length of the alimentary canal correlate with the
evolutionary history of the organisms ?
The organs of the digestive system are traditionally separated
into two major groups: the alimentary canal, and the
___________.
supporting digestive organs
accessory digestive organs
gastrointestinal tract
The hollow organ that receives bile from the liver is called
the
Duodenum
Gallbladder
Stomach
Nearly all nutrient absorption occurs in the ____________.
large intestine
small intestine
stomach
For ingested food to become available to the cells, it must
first be broken down into smaller diffusible molecules in a process
called ___________.
absorption...
Describe the organs of the alimentary canal:
-Note any specializations in the layers that make up the walls
of these organs.
-Note the epithelial tissue that lines the lumen
- Describe / list the sub-regions of these organs where
appropriate (e.g. in the small and large intestine)
Which layer of the wall of the alimentary canal us responsible
for motility (peristalsis & segmentation)?
A. submucosa
B. lamina propria
C. muscularis externa
D. serosa
muscularis mucosae