LG 2.1 Trends and Various Strategies Used by Organisms to Process Food Flashcards
There are 4 main stages of food processing namely:
Ingestion, Digestion, Absorption, Elimination
It is the act of eating
Ingestion
This phase comes after ingestion
Digestion
There are 2 types of digestion called:
Mechanical and Chemical Digestion
It is the physical process of breaking or tearing down food.
Mechanical Digestion
It is the chemical process of tearing down food into small particles.
Chemical Digestion
It occurs when digestion is finished; food molecules are broken down and are now absorbed by cells.
Absorption
Waste products of digestion are removed from the body.
Elimination
It is the simplest digestive compartment; Contains food matter to be digested.
Food Vacuoles
When cell takes solid food, it is called ___.
Phagocytosis
It is when a cell takes liquid.
Pinocytosis
It fuses w/ food vacuole, to start digesting food particles.
Lysosome
It is the breaking down of food inside food vacuoles
Intracellular Digestion
The process of breaking down food compartments.
Extracellular Digestion
It is a digestive compartment where food enters and waste exits.
Gastrovascular Activity
The ___ has two openings: mouth and anus.
Alimentary Canal
These type of animals obtain nutrition from decaying roots and other animals consuming soil.
Earthworms
This type of animal feeds on multiple plant sources; some eat animal tissue and feces.
Grasshoppers
These are used by grasshoppers for chewing and biting food
Mandibles
These are used by grasshoppers where they are used for manipulating and swallowing food.
Maxillae
The alimentary canal of a grasshopper contains 3 regions namely:
Hindgut, Foregut, and Midgut (not in order)
They have different beak sizes and shapes depending on the food they eat.
Birds
Birds take in food through their ____, passing through the ___, ___ and into the ___.
Beaks, Esophagus, Crop, and Stomach respectively
The stomach of a bird contains 2 chambers namely:
Proventriculus, Gizzard
The ___ digestive and excretory system.
Cloaca
These are hoofed mammals that have a unique digestive system.
Ruminants
Ruminants are
a. ) Carnivores
b. ) Herbivores
c. ) Omnivores
d. ) None of the Above
Herbivores
Ruminants have a ___, ___, ___, ___ and ___.
mouth, esophagus, stomach, small and large intestine respectively
It is the first chamber of a ruminant’s stomach; The functions include: storage for the cud until regurgitated and swallowed.
Rumen
It is also known as honeycomb; It has microbes that digest food; Main function is to collect smaller particles and move by muscle contraction.
Reticulum
It is a spherical shaped part of the stomach connected to the reticulum; it is called “many plies” because of many tissue folds.
Omasum
It is also known as “True Stomach”; It secretes hydrochloric acid and digestive enzymes.
Abomasum
They are not true ruminants.
Pseudoruminants
Pseudoruminants have 3 chambered stomachs namely:
Omasum, Abomasum, and Reticulum
Pseudoruminants have ___ that acts as rumen.
Cecum
Earthworms have ___ - internal fold of the intestines that increases the surface area.
Typhlosole