Here are your digestion notes
You will go through the textbook and take notes on Digestion. Fill in the diagrams provided with the materials in the text.
Today we looked at whether a donut hole is on the outside or the inside of a donut and we took notes on how human body systems are made of cells with a self cell marker known as a major histocompatibility complex. This complex forms a cellular identification which helps the immune system recognize it and avoid attacking those self cells. Foreign proteins are called ANTIGENS.
The Digestive System has the following functions:
1. DIGESTION
2. ABSORPTION
3. ELIMINATION
4. MICROBIOME
DIGESTION
- mechanical digestion: USING TEETH in the mouth or PERISTALSIS in the stomach
-chemical digestion USING ENZYMES in the mouth, stomach and duodenum
ABSORPTION
- amino acids, monosaccharides, nucleic acids and lipids are absorbed in the small intestines
- water and vitamins are absorbed in the large intestines
ELIMINATION
-rectum stores undigested food
- anus eliminates undigested food
MICROBIOME
- microbes live on the skin and also the gastro intestinal tract. There are more bacteria living on a human body than there are cells on the human body. The composition of the microbiome influences health and disease
3 column notes assignment:
Create 3 column notes summarizing the part of the gastrointestinal tract and the details of how mechanical and chemical digestion takes place.
LIST OF ORGANS:
Mouth, salivary gland , pharynx, epiglottis, esophagus, stomach, duodenum, liver, gall bladder, pancreas, small intestine, large intestine rectum, anus
Some of organs are accessory organs which produce enzymes for digestion. Summarize what enzymes are produced, stored and write details about how this happens. THESE are the three columns:
ORGAN and function. MECHANICAL DIGESTION. CHEMICAL DIGESTION
MOUTH
is the food receiver chewing food starch --salivary amylase--> glucose
SALIVARY GLAND
produces salivary
amylase
PHARYNX
a region between the mouth and esophagus
where swallowing happens .
tonsils are located here
EPIGLOTTIS
a fleshy flap that prevents
food from entering trachea
ESOPHAGUS
conducts a bolus of
food using
peristalsis
STOMACH
- digests proteins MECHANICAL DIGESTION CHEMICAL DIGESTION
food is churned using peristalsis pepsinogen -->pepsin
protein ---pepsin , HCL---> polypeptides
- stomach has
gastric pits which produce
mucous, HCL and pepsinogen
Digestion Colouring Diagram:
Colour and label what happens in each part of the digestive system
