B4.1.5 - Efficiency Of Biomass Flashcards
What transfers energy to producers?
Sunlight
How much of the energy which the producers gained from sunlight is transferred into chemical stores?
1%
What does the energy transferred by photosynthesis for a plant do?
Respite and increase biomass
How much of the chemical energy is converted into food by the consumers?
10%
When is biomass lost?
Not all of an organism is eaten
Some biomass is used for respiration
What is egestion?
The removal of indigestible parts of an organism in faeces
Give an example of indigestible body parts of a human.
Hair and teeth
What is excretion?
When waste products produced by the body is lost
Why is the biomass of the previous trophic level not always the same?
Not all of it is consumed
What happens to the amount of energy transferred after each trophic level?
It decreases
Why aren’t there usually more than 4 trophic levels?
Not enough energy can be transferred to sustain life processes
What is the equation to calculate the efficiency of biomass transfer? (%)
(Biomass available after the transfer / biomass available before the transfer) * 100
