BIOB34H3 Lecture Notes - Lecture 17: Chemotroph
4 Dec 2018
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This lec, more than any other lec in the course, shows diversity among animals various feedings among animals: the way we feed is different than how other animals feed or digestion: different patterns and mechanisms. Figure nicely organizes the feeding+digestive process into tangible pieces and relationships between them. Feeding: process of acquiring nutrients that animals need lots of diff feeding apparatuses/behaviours that animals exhibit. 1. hydrolytic digestion: animals themselves synthesize enzymes secreted into their guts to break down consumed food molecules diff animals have evolved diff sweets of digestive enzymes that match their nutrient demands. Makes sense bc if u don"t have a high demand for nutrients, there"s not point to have enzymes bc u don"t need to break down the food u consume to get nutrients. 2. fermentative digestion: animals rely on microbial organisms (e. g. bacteria) in their digestive tract to digest the nutrients some animals use only one of these methods and some combine the.
