Decomposition (AQA GCSE Biology): Flashcards
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Decomposition
Decomposition
Process of breaking down organic material into simpler forms
Effect of warmer conditions on decomposition
Effect of warmer conditions on decomposition
Chemical reactions occur faster
Effect of very high temperature on decomposition enzymes
Effect of very high temperature on decomposition enzymes
Enzymes denature, slowing or stopping the process
Why decomposers need moist environments
Why decomposers need moist environments
Water essential for respiration & softens organic material
Why decomposers need oxygen
Why decomposers need oxygen
For aerobic respiration to decompose materials efficiently
Composting
Composting
Decomposing organic material (kitchen scraps/garden waste) to produce compost
Use of compost
Use of compost
Natural fertiliser rich in nutrients to improve soil health
Role of oxygen in composting
Role of oxygen in composting
Allows aerobic respiration, producing heat that speeds decay
Product of anaerobic decomposition
Product of anaerobic decomposition
Methane gas
Use of methane from decomposition
Use of methane from decomposition
Captured and burned as fuel source
Biogas generators
Biogas generators
Devices producing methane through anaerobic digestion
Temperature needed for methane production
Temperature needed for methane production
Constant temperature around 30°C
Methane storage limitation
Methane storage limitation
Cannot be stored as liquid, must be used immediately