The Role of Micro-Organisms and Symbiotic Relationships (Grade 11 NSC Matric Life Sciences): Flashcards
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Examples of micro-organisms
Examples of micro-organisms
Bacteria, fungi, algae, other microscopic life forms
Decomposers' function
Decomposers' function
Break down dead material & recycle nutrients
Saprophytes
Saprophytes
Decomposers living directly on dead organic matter
Nitrogen form plants can absorb
Nitrogen form plants can absorb
Nitrates
Symbiosis
Symbiosis
Close living arrangement between different species
Mutualism
Mutualism
Both organisms benefit from the relationship
Commensalism
Commensalism
One benefits, other neither helped nor harmed
Parasitism
Parasitism
One benefits at expense of the other (host)
E. coli benefit to humans
E. coli benefit to humans
Produces vitamin K for blood clotting
Mycorrhizal fungi benefit to plants
Mycorrhizal fungi benefit to plants
Increase surface area for water & mineral absorption