autotrophic nutrition

Cards (10)

what is meant by nutrition 
this is the process by which organisms obtain energy to maintain life functions
what are autotrophic organisms 
these are organisms that synthesise their own complex organic molecules
what are the two types of energy used by autotrophic organisms 
either light or chemical
what are examples of photoautotrophic organisms 
green plants , algae and some bacteria
what is meant by a photoautotrophic organism 
these organisms use energy from the sun to carry out photosynthesis to make glucose from co2 and water
What is the word equation for photosynthesis? 
Carbon dioxide + water -> glucose + oxygen
what is meant by chemoautotrophic organisms 
organisms that use energy from chemical reactions to synthesise organic molecules
what is an example of a chemoautotrophic organism
deep sea hydrothermal vents
what is the word equation for chemo synthesis 
carbon dioxide + water + hydrogen sulfide + oxygen -> carbohydrate + sulphuric acid
what is the symbol equation for chemo synthesis 
CO2 + H2O + H2S + O2 -> CH2O + H2SO4