Decomposers- B4.1.8

what are decomposers?

microorganisms e.g fungi and bacteria

what do microorganisms do 2

they break down dead organisms material at a microscopic level. this means nutrients can be released and recycled.

e.g urine, animal waste

what are Saprophytes

organisms feeding on dead material

what are detritivore and what do they create?

small animals that speed up decomposition by shredding organic  material into very small pieces. This way, this creates a larger S.A for decomposers to work on.

what are Detritus

certain material that Detritivore break down

how do decomposers release nutrients 3

1. Decomposers release enzymes to break down substances in organic matter 

2. They then absorb nutrients into bodies for growth and energy 

3. this is either transferred to the soil/environment or to other organisms when eaten

what factors affect ROD (rate of decomposition)

1. WARM TEMP: high temps=enzymes denature-prevention of reaction Low temps= ROD is slow

2. MOIST ENVIROMENT: low water= reactions within microorganism slow down or stops and reduces process of decomposition

3. AEROBIC CONDITIONS: oxygen needed for respiration of microorganism. anaerobic prevents most forms of decomposition