Download Process of Digestion: There are four components of the digestive

Process of Digestion:
• There are four components of the digestive process:
1) Ingestion:
2) Digestion: the breakdown of
molecules into smaller components by
3) Absorption: the transport of
to the cell of the body
4) Egestion: the
from the body
Digestive System Notes 2
of
1
Carbohydrate Digestion
•
Digestion of
(complex carbs) begins in the mouth
(
•
)
No starch is digested in the stomach as the pH is out of the comfort zone of amylase (pH
7)
•
In the small intestine pancreatic
into
digests
then
Carbohydrate Absorption:
•
Monosaccharide are
into the
and then into the
•
They are then taken to the
•
The circulatory system then takes the glucose to the body cells for the
and made into
Protein Digestion:
•
Begins in the
where
breaks
down into
•
In the small intestine
and
further break down the polypeptides
•
Other enzymes further break down the polypeptides into
Protein Absorption:
•
•
Amino acids are then
into the
and then into the blood
The blood carries the amino acids to the liver where they undergo a variety of reactions
Fat Digestion:
•
•
•
Occurs in the
Bile is secreted into the small intestine from the
which breaks the fat into smaller pieces.
Bile
fats
• Example: physical digestion to increase surface area
Digestive System Notes 2
2
•
The small intestine secretes
its original parts
Digestive System Notes 2
that break down the fat into
3
Digestive System Notes 2
4