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Digestion System

long chain like molecules peptides
chains are chopped from peptides to amino acids
fat molecule as a whole triglyceride
first starch molecules are cut into maltose
a simple sugar maltose
are cut into maltose then to glucose
cuts up nutrient molecules enzymes
little scissors cutting down the nutrient molecules until they fit in the blood streams enzymes
the crushing and grinding of food in the digestive system mechanical digestion
squirts saliva in to the mouth salivary glands
saliva contains this enzyme salivary amylase
cuts starch molecules into maltose salivary amylase
the only nutrient molecule that is cut into smaller pieces in the mouth starch
digestion that describes how the food is minced into smaller chunks mechanical digestion
describes the action of enzymes where molecules of food are actually chopped into smaller molecules chemical digestion
digestive system or gastrointestinal tract
AKA food tube esophagus
AKA windpipe trachea
back of the throat the pharynx
flap of skin epiglottis
a series of wave-like muscular contractions pushes food along the tube toward the stomach peristalsis
juice that helps the churning of food gastric juice
mixture of mucus, HCI, and enzymes gastric juice
lines the stomach to prevent HCI from rapidly eating away the stomach mucus
liquefies the lumps of food to make the job of the enzymes easier mucus
every two to three days you grow one of these in the stomachs stomach linings
enzyme in the stomach pepsin
first stage of protein digestion pepsin
cuts huge proteins molecules into smaller molecules pepsin
pepsin can not do this job without this HCI
kills bacteria entering the stomach preventing disease HCI
liquefied mixture of food chyme
first portion of the small intestine duodenum
squirts the glands in the duodenal wall sodium hydroxide
horseshoe shaped duodenum
two enzymes need in order for the digestion of starch to be completed in the duodenum pancreatic amylase and maltase
converting maltose to glucose is the job of this enzyme maltase
three types of nutrient molecules needed to enter the blood stream glucose, fatty acids, amino acids
central body cavity abdomen
finger like projections villi
on top of the villi are even smaller finger like projections known as microvilli
traps nutrient molecules and funnels them toward the inner intestinal wall for absorption microvilli
squirts digestive juices into the duodenum pancreas and gall bladder
squirted into the duodenum through the pancreatic ducts pancreatic juices
behind the liver is a muscular bag called the gall bladder
green watery liquid bile
bile contains these chemical bile salts
detoxifies the blood by filtering out poisons, germs and drugs liver
controls the amount of glucose in the blood liver
changes excess or unwanted amino acids into glycogen liver
removes the blood molecule haemoglobin back into the blood liver
a starch-like molecule which is stored in muscle tissue glycogen
shorter but fatter intestine the large intestine
attached to the large intestine appendix
carbohydrate like molecule that absorbs water and helps move water through the intestines fibre
Created by: poopoohead