digestion ii
DESCRIPTION
Digestion II. Stomach. Eats other fish. Stomachs. Stomach. Marine fish. Esophogus. Intestine. Freshwater Omnivore. Stomachs. Esophagus. Intestine. Planktivore. Stomach. Gizzard-Like Stomach. Gizzard Shad. Mullet. Parts of the Stomach. Fundic Stomach Muscular for Grinding. - PowerPoint PPT PresentationTRANSCRIPT
Hydrochloric Acid
• decalcifies bones• breaks down
connective tissue
• decalcifies bones• breaks down
connective tissue
Hydrochloric Acid
•decalcifies bones•breaks down
connective tissue•hydrolyzes proteins
•decalcifies bones•breaks down
connective tissue•hydrolyzes proteins
Hydrochloric AcidHydrochloric Acid
• decalcifies bones• breaks down
connective tissue• hydrolyzes proteins• kills disease
organisms
• decalcifies bones• breaks down
connective tissue• hydrolyzes proteins• kills disease
organisms
Definitions
• Planktivore: Eats plankton• Piscivore: Eats fish• Herbivore: Eats plants• Omnivore: Eats a little of everything• Detritivore: Eats bottom goo• Insectivore: Eats insects• Carnivore: Meat (insects and fish too…)
IntestineLength
• Piscivores: 1 x body length
• Herbivores: 2 x body length
• Planktivores: 5-13 x body
• Omnivores: 2-4 x body
• Detritivores: 10-15 x body
Intestinal Secretions
•Bicarbonate to neutralize the acid
•Produces correct pH for other digestive enzymes that come from the…
Pancreas1. Endocrine: Insulin
for blood sugar control (Brockman bodies)
2. Exocrine: Digestive enzymes
ExocrinePancreasExocrinePancreas
Trypsin: proteinsLipases: fatsAmylases: starches
Trypsin: proteinsLipases: fatsAmylases: starches
Liver Functions
• Vitamin storage: A (years worth!), D, B12 (months worth).
• Iron storage: Iron is needed to make hemoglobin and some enzymes. Free iron levels in the blood are kept very low to inhibit the growth of bacteria.
• Detoxification: Toxic compounds from food and blood are metabolized into nontoxic (hopefully!) compounds.
Liver Functions (metabolism)• Carbohydrate metabolism: Storage of sugar
as glycogen, production of sugar from other molecules, conversion of sugar types to other sugar types. Maintains blood sugar levels.
• Fat metabolism: Fat storage, conversion of carbos to fat, production of cholesterol,
• Protein metabolism: Produces plasma proteins (albumen, clotting, immune function), makes egg yolk (vitellogenin), amino acid conversion.