energy and ecosystems

Question 1

what is biomass formed from

Answer 1

the leftover synthesised sugars that arent used to make respitatory substrates

Question 2

how can biomass be measured

Answer 2

in terms of dry mass of tissue or mass of carbon per given area.

Question 3

what is GPP

Answer 3

gross primary production is the chemical energy store in a plant biomass in a given area or time.

Question 4

what is NPP

Answer 4

net primary production is the chemical energy store in a plant biomass after respiratory losses to the environment have been taken into account
NPP= GPP- R

Question 5

NPP in animals and consumers

Answer 5

the total energy consumers store in digested faeces urine and respiration N= I - (F+R)
I = ingested
F= lost in faeces etc
R= lost in respiration

Question 6

what is primary and secondary production

Answer 6

rate of primary or secondary production measured as biomass in a agiven area in a given time