B4g decay
Teacher recommended
?- Created by: James Bassford
- Created on: 26-01-14 11:17
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- DECAY
- Conditions
- Temperature
- warm temp. speeds up decay
- Increases rate of respiration in micro-organisms
- Opt. temp. for enzymes
- warm temp. speeds up decay
- Moisture
- chemical reactions take place in solution
- Oxygen
- for aereobic respiration
- Decomposers
- Soil bacteria
- Chemically break down material
- Producing
- Nitrogen based waste
- CO2
- Producing
- Chemically break down material
- Fungi
- Saprophytes
- send out hyphae tendrils
- Secreting digestive enzymes
- which digests matter for absorbtion
- send out hyphae tendrils
- Secreting digestive enzymes
- which digests matter for absorbtion
- which digests matter for absorbtion
- Secreting digestive enzymes
- send out hyphae tendrils
- which digests matter for absorbtion
- Secreting digestive enzymes
- send out hyphae tendrils
- Saprophytes
- Soil bacteria
- Temperature
- Feeding on decaying material
- Saprophytes
- Detritivores
- Feed on detritus (decaying material
- E.g. Maggots, Earthworms and woodlice
- Break material into smaller pieces
- Increasing it's surface area
- Easier for small composers to decay it
- Speeds up decay
- Easier for small composers to decay it
- Increasing it's surface area
- Saprophytes
- Decomposers
- Soil bacteria
- Chemically break down material
- Producing
- Nitrogen based waste
- CO2
- Producing
- Chemically break down material
- Fungi
- Soil bacteria
- Food preservation
- Canning
- airtight can
- no oxygen
- decomposers cant reproduce
- no oxygen
- airtight can
- Cooling
- fridge
- slows reproduction rate
- fridge
- Freezing
- freezer
- can't reproduce at low tempreatures
- freezer
- Drying
- e.g. meat and fruit
- decomposers need water for cell reactions
- e.g. meat and fruit
- Adding salt/sugar
- high conc. sugar salt around the decomposers
- they'll lose water by osmosis and cannot function
- high conc. sugar salt around the decomposers
- Adding vinegar
- vinegar is acidic
- The acid kills the decomposers
- vinegar is acidic
- Canning
- Conditions
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