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Digestive and Urinary System
Grecia Lopez, Per. 1 - Coggle Diagram
Digestive and Urinary System
Grecia Lopez, Per. 1
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Digestive enzymes
Amylase
- Breaks down starch into smaller molecules
- Made in the mouth and pancreas
Proteases
- Break down proteins into amino acids
- Made in the pancreas
Lipases
- Break down lipid fats into fatty acids and glycerol
- Made in the pancreas
Nucleases
- Break down nucleotides into nucleic acids
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Digestive Processes
- Ingestion (eating)
- Propulsion (swallowing and peristalsis)
- Mechanical Breakdown (includes chewing, mixing food + saliva, churning food, and segmentation)
- Digestion (enzymes break down food into building blocks)
- Absorption (passage of digestive fragments from the lumen of the GI tract into the blood or lymph)
- Defecation (elimination of in-digestive substances via anus in the form of feces)
Urine
- Can be examined via urinalysis for disease
- Chemical composition: 95% water and 5% solutes
- Has nitrogenous waste: urea (from amino acid breakdown), uric acid, and creatinine
- Clear, slightly aromatic when fresh, slighlty acidic (~PH6)