Card Set Information
The basics of absorption in animal nutrition
What is absorption?
passage of small molecules into the body
Where does absorption occur?
rumen, reticulum & omasum of ruminants
What is the basic microanatomy of intestines?
What are the types of absorption?
Requirements for Passive diffusion:
it moves with the concentration gradient
from High to low concentration
no energy necessary
how does facilitated diffusion work?
moves with concentration gradient
from high to low concentration
requires carrier protein but no energy
What are the requirements for active transport?
moves against the concentration gradient
from low to high concentration
requires energy through ATP and a carrier protein
What does phagocytosis do?
part of a villi engulfs a nutrient
no digestion required
absorbs large particles