BIO1022 Lecture Notes - Lecture 24: Coprophagia, Short-Chain Fatty Acid, Foregut
30 May 2018
School
Department
Course
Professor
BIO1022 – Lecture 24 – Nutrition and Digestion 2
- digestive adaptations
• type of food
•
o carnivorous vs herbivorous animals
o
▪ animals
▪
▪ mostly protein
▪ easily digestible
▪ plants
▪
▪ mostly carbohydrates
▪ some easily digestible
▪ most not
• mammal dentition
•
o carnivore
o
▪ simple teeth and digestive system
o herbivore
o
▪ complex teeth and digestive system
- birds
• gizzard instead of teeth
•
o large muscular wall lining around the gizzard for a herbivore
o expensive to maintain
o gizzard mass
• comparison of digestive tract size and complexity between diets
- mutualistic adaptations
• major gut regions
•
o foregut
o
▪ fermentation chamber
▪ compartment upstream of the stomach that contains
bacteria for fermentation
▪ complex stomach containing bacteria
▪ protein from bacteria
▪ energy from volatile fatty acids produced by bacteria - by
products
o hindgut
o
▪ fermentation chambers
▪ cecum
▪ colon - enlarged
▪ downstream of the stomach
▪ very efficient teeth and simple stomach
find more resources at oneclass.com
find more resources at oneclass.com
