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digestive system josue alviar period 2 - Coggle Diagram
digestive system josue alviar period 2
digest enzymes
proteins(stomach and small intestine)
pepsin- protein
protease- peptide amino acid
amylase- poly - di
maltase-glucose
lactase- glucose galactose
sucrase - glucose - fructose
carbohydrates (mouth and small intestine)
nuclease- nucleotides
lipids(small intestine)
DNA/RNA
lipase- fatty acids and glycerol
disorders of the digestive system
irritable bowel syndrome
gastroesophageal reflux disease (GERD)
inflammatory bowel disease(IBD)
Crohn disaease
Major organs of the digestive system
1.) Alimentary canal or gastrointestinal (GI) tract
mouth, pharynx, esophagus, stomach, small intestine, large intestestine, and anus
2.) accessory digestive organs
teeth, toungue, gallbladder, salivary glands, liver and pancreas
major functions of the digestive system
chemical digestion- breaks food into simpler chemicals that can be absorbed by cells in the body
mechanical digestion- physical breaking down of large food pieces into smaller pieces
absorption of food for metabolism
layers of the GI tract
1.) mucosa
epithilium
lamina propria
Muscularis Mucosae
submocosa- areolar connective tissue containing major blood vessels
3.) muscularis or muscular layer- two muscles of smooth muscles to allow peristalsis and segmentation
4.) serosa- outer covering of the GI Tract
location of digestion and absorption of each macromolecule
the digestive system/ GI tract is a long tube that starts at the mouth and ends at the anus. it is made up of a series of muscle that coordinate the movement of food and other cells that produce enzymes and hormones to aid in the breakdown of food.
Digestive enzymes are enzymes that breakdown polymeric macromolecules into their smaller building blocks in order to facilitate their absorption by the body. digestive enzymes are found in the digestive tracts of the animals