bio study test 3

bio study test 3 - Digestion Absorptive Ingestive Essential...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Digestion Absorptive Ingestive Essential Amino Acids- those that animals cannot synthesize from proteins Kwashiorker- protein energy malnutrition Essential fatty acids(Linoleic) Digestion= hydrolysis- splitting with H2O Gastrovascular Cavity(hydra, planaria) Extracellular- not in cells Intracellular-in cells x-section of Digestive System Mouth- Dental formula- 2123 4 tastes- salty, sweet, bitter, sour Physical vs. chemical digestion- chewing vs saliva 3 pairs of salivary glands=amylase (starch sugar) Parotid, sublingual, submaxillary Esophagus Peristalsis- rhythmic muscular contractions Mucous Stomach Cardiac Sphincter- between esophagus and stomach Pyloric Sphincter- between stomach and small intestine Rugae- HCl- from parietal cells Mucous glands Pepsin – Proteins—Polypeptides Bolus- state of food going into stomach Chyme- state of food going out of stomach Small Intestine Duodenun—juices from—stomach, liver and gallbladder(bile- physical lipid digestion), pancreas(amylace- starch, lipace-lipids, tripsin- proteins) Absorption and digestion Large Intestine Ascending Colon Transverse Colon Descending Colon Sigmond Colon Absorbs Water, stores fecal matter, gastric caecum & appendix
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Respiration- Ectotherms vs Endotherms—endotherms(birds and mammals) have higher oxygen demands Needs; Large gas exchange surface Protect respiratory surface Keep surface moist Transport gases Invagination vs Evagination- inward vs outward—lungs, trachea vs gills Respiration problems on land- keeping surfaces moist Respiration problems in water- problem obtaining enough O2
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

bio study test 3 - Digestion Absorptive Ingestive Essential...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online