Factors affecting the rate of photosynthesis

Question 1

describe co2 concentration

Answer 1

as an input of the ligth dependent stage, as it increases, rate of ps increases linearly.
However will stop increasing due to limiting factor - enzymes involved and coenzymes at maximum capacity

Question 2

describe temperature

Answer 2

there are enzymes involved. … deactivation and denaturation

Question 3

describe light intensity.

Answer 3

As light intensity increaes, ROR will increase linearly (as in LD stage, light is needed to turn ADP + Pi and NADP+ into ATP and NADPH which are reactants for next stage). But will eventually stop increasing due to limiting factor - CO2 availability and/or temp

Question 4

describe light wavelength

Answer 4

for the visible light spectrum, all colours not being used are absorbed, and the ones being used are reflected.
So chlorophyll absorbs the purple-blue and red-orange regions of the visible light spectrum, and absorb green the worst

Question 5

what are the purpose of accessory pigments?

Answer 5

trap light of other wavelengths and transfer it to chlorophyll (eg. orange carotenoids)