Topic 5 - B : Energy Transfers and Nutrient Cycles

Question 1

Ecosystem

Answer 1

All organisms living in an area including all the abiotic conditions

Question 2

Biomass

Answer 2

dry mass of organism tissue

Question 3

Calorimetry

Answer 3

method of measuring chemical energy store
burn biomass using the energy to heat water
the temperature change of the water can be used to work out the chemical energy store

Question 4

Net primary production

Answer 4

NPP=GPP-R

Question 5

Efficiency of energy transfer

Answer 5

Net production of trophic level/Net production of previous trophic level x100