Difference between Biomass and Energy?

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SleepyBeans
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#1
Report Thread starter 3 years ago
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I know this sound dumb but isn't biomass the total mass of the organism multiplied by population?

My Specification says:
1. Describe how Biomass is lost with examples, between trophic levels
2. Calculate Efficiency of biomass transfers and how this effects number of trophic levels.

I understand that energy is lost through heat, excretion, digestion, and respiration so only around 10% is passed on...
I also know the efficiency equation...
But what's that gotta do with biomass, wouldn't the efficiency question be for energy, not biomass. And can biomass be lost?

Or are biomass and energy synonyms of each other and I'm just missing the most basic point?
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clara.w123
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(Original post by Rachana.L)
I know this sound dumb but isn't biomass the total mass of the organism multiplied by population?

My Specification says:
1. Describe how Biomass is lost with examples, between trophic levels
2. Calculate Efficiency of biomass transfers and how this effects number of trophic levels.

I understand that energy is lost through heat, excretion, digestion, and respiration so only around 10% is passed on...
I also know the efficiency equation...
But what's that gotta do with biomass, wouldn't the efficiency question be for energy, not biomass. And can biomass be lost?

Or are biomass and energy synonyms of each other and I'm just missing the most basic point?

In the gcse context (at least for my edexcel course) you can pretty much use them as synonyms. The energy that is lost/ realeased is STORED in the biomass e.g. as starch/glucose/fat stores and so if the energy is lost, it follows that the biomass that held the energy is also being reduced (being broken down). As long as you can understand why energy losses happen, and use the equation with given numbers, you should be fine, as there shouldn't be a question about comparing energy to biomass or anything else like that
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cmonb123
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#3
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biomass - energy derived from recently living or dead material
energy - originates from biomass so biomass is the source.
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