digestive system Flashcards
refers to all the chemical reactions that take place inside an organism’s body
metabolism
the intake of food from various sources and the
processes that convert food substances into living matter
Nutrition
- breaking down
catabolism
- building up
anabolism
Animal Nutrition
- produce their own food e.g plants
Autotrophs
Animal Nutrition
consume food from other organism for nutritions
e.g: Herbivore, Carnivore, Omnivore, Detrivore , Decomposers
Heterotrophs
Types of digestive system in animal
- Digestion happen inside cell e.g Amoeba
intracellular digestion
Types of digestive system in animal
- Digestion happen in organs then feed cells
Extracellular digestion
Types of digestive system in animal: Extracellular digestion: happens when food is broken down outside cell
Two types:
Incomplete digestive system
complete digestive system
2 types of extracellular digestion
- Animals with relatively simple body plans typically have a digestive compartment with a single opening
Incomplete Digestive system
This pouch, called a___________________, functions in digestion as well as in the distribution of nutrients throughout the body
gastrovascular cavity
2 types of extracellular digestion
double opening
complete digestive system
Foregut Forementation flow
Ruminants- Rumen- Reticulum- Omasum- Abomasum
Cow, when cow consume when it enters omasum it goes right back to the mouth then consumed again or regurgitation
Foregut Fermentation
Rabbit eat dirty things for more nutrition
Hindgut Fermentation
Feeding mechanism in animal
- uses body part to move water
suspension feeding
Feeding mechanism in animals
- a type of suspension feeding, removing suspended food particles from medium by trap/capture mechanism
Filter Feeding
Feeding mechanism in animals
- live in their source of food
susbstrate feeding
Feeding mechanism in animals
- suck nutrient- rich fluid from living host like mosquitoes
fluid feeding
Feeding mechanism in animals
- humans and most animals, eat large pieces of food
bulk feeding
Human digestive system
- which food is broke down to smaller molecules that used to nourish cells
digestion
two phase of digestion:
mechanical phase
chemical phase
2 phase of digestion
- chewing or mastication
mechanical phase
2 phase of digestion
- food is acted upon chemical substances called enzymes or bio catalyst that melt food
chemical phase