GPP and NPP - pack 13 Flashcards
1
Q
what is gross primary productivity (GPP) and it’s units
A
the rate at which energy is incorporated into organic molecules by an ecosystem
2
Q
% efficiency of photosynthesis =
A
(GPP / amounts of energy needed from light on plant surface) x100
3
Q
describe what happens to the carbohydrates produced in photosynthesis
A
some are quickly broken down in respiration which provides the energy for plants life processes such as cell division and active transport - the rest are incorporated into proteins, chromosome membranes and other cell components becoming new plant biomass
4
Q
what is NPP
A
rate at which energy is transferred into the organic molecules that makeup the new plant biomass
5
Q
A
6
Q
NPP =
A
GPP - R
