Energy In Biomass Flashcards
(27 cards)
What does a pyramid of biomass represent?
A mass of organisms at each stage in a good chain
What Is biomass
The mass of a living material in plants and animals
What do green plants transfer
Solar (light) energy to chemical energy which is then passed through the food chain
What’s the main source of energy for living organisms
Radiation from the sun
What captures light energy for photosynthesis
Green plants and Algae
Why is not all the energy taken on by an organism used for growth?
Because not all food can be digested so energy is stored in faeces or a urea in urine. Used for respiration when the organism moves & to keep a constant temp
What happens to most of the energy used for respiration
Ta eventually transferred to the surroundings
What are sankey diagrams used to show?
The energy intake and the energy use or transfer in an animal
What do all organisms need? And if they didn’t realise them, they would run out
Nutrients
What starts the process of decay by eating dead animals or plants and producing waste materials
Detritus feeders (such as some worms)
What do decay organisms do
Real down the waste of dead plants and animals
When is decay quicker
When the conditions are warm, moist and aerobic conditions
What are decay organisms? And what do most of them need?
Microorganisms (Bactria and fungi) most need oxygen
All the materials from waste and dead organisms are..
Recycled, returning nutrients to the soil
How can humans recycle waste ?
In sewage treatment plants and compost heaps
What does the recycling of carbon consist of?
Photosynthesis and respiration
What does photosynthesis do?
Removes carbon from the at atmosphere
Green plants and animals respire which..
Returns carbon to the atmosphere
Animals eat green plants which means what
Carbon build up in their bodies
Wen plants or animals die, or produce waste, what do microorganisms realise
Co2 back into the atmosphere through respiration
What does a stable community mean
It recycles all nutria a it’s taken up
The constant cycling of carbon in nature is called?
The carbon cycle
What’s combustion
Te process of burning ( fossil)
What contains organic waste?
Waste vegetables and peelings from the kitchen, or grass cuttings & clippings from trees - they can be recycled
