4.1.8 decomposers

Question 1

what is decomposition

Answer 1

decomposes breaking down or decaying dead organic material at a microscopic level

Question 2

what is a detritivore?

Answer 2

small animals that catalyse decomposition by shredding organic material into very small pieces so the decomposers have a large SA to work on

Question 3

examples of decomposers

Answer 3

fungi
bacteria

Question 4

examples of detrivores

Answer 4

earthworms
woodlice
maggot

Question 5

how decomposers release nutrients

Answer 5

decomposers release enzymes on dead organism
enzymes digest dead matter and make it soluble
soluble products are absorbed by decomposers

Question 6

factors affecting rate of decomposition

Answer 6

warm temp- too high temp can cause enzymes to denature. too low temp slows rate of reaction
moist environment- low water levels can slow down reaction and stop decomposition process
aerobic conditions - oxygen needed for organisms to respire.