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Worksheets7.2 Decay
Total questions: 10
Worksheet time: 5mins
Decay is the life process which
converts carbon dioxide and water into glucose
converts glucose and oxygen into energy
breaks down waste matter and recycles materials
releases water from stomata in plants
What type of gas does anaerobic decay produce
Carbon dioxide
Methane
Oxygen
Nitrogen
What can methane gas be used for?
Fertiliser
Filtration
Animal Feed
Bio-fuel
The three things needed for decay to occur most quickly are
moisture , oxygen and warmth
moisture, carbon dioxide and cold
dry conditions, oxygen and cold
dry conditions, no oxygen and warmth
Why is decay essential for life
to recycle energy
to recycle chemicals
to keep energy in the same place
to keep chemicals in the same place
When a plant or animal dies what happens to it's body
It combusts
It decays
It photosynthesises
It respires
What types of organisms carry out decomposition? (select all that apply)
Fungi
Virus
Bacteria
What types of decomposers are fungi
Saphrotrophs
Artichokes
Detritivores
Carnivores
How do saphrotrophs decompose?
Absorb their food, release enzymes and digest it
Digest it, absorb it, release enzymes
Release enzymes onto food, digest it, absorb it
Why do freezers slow decay
Too dry for microorganisms
No oxygen for microorganisms
No microorganisms
Too cold for microorganisms
