Sunday, August 14, 2016

Autotroph vs Heterotroph Producer vs Consumer

An Autotroph is an organism that can self feed The word autotroph comes rom the Greek autos "self" and trophe "nourishing."


Autotrophs are the producers in a food web.


Autotrophs produce their energy from the sun in a chemical process called photosynthesis.


They take  Carbon Dioxide plus water and sunlight and produce sugar and oxygen.


Autotrophs form the base of the energy pyramid.


A heterotroph comes from the greek word meaning  heteros = "another", "different" and trophe = "nutrition."
Heterotroph get their energy by eating other plants and animals.


They use,  
Sugar + oxygen to produce carbon dioxide + water and energy in the form of ATP


C6H12O6 + 6 O2 --------> 6 CO2 + 6 H2O + Energy (ATP)
This process is called cellular respiration.


Some Heterotrophs that only eat plants, herbivores) others eat only meat, ( carnivores) others eat plants and animals  ( omnivores) while some heterotrophs feed on dead organic remains of other organisms. ( decomposers)