photosynthesis Flashcards
1
Q
what is the pondweed placed infront of
A
a source of white light
2
Q
as the pondweed photosynthesises what is released
A
oxygen that will collect in the capillary tube
3
Q
why is a syringe used
A
to draw the gas bubble in the tube alongside the ruler
4
Q
why is the length of the gas babble measured
A
because it is proportional to the volume of oxygen produced
5
Q
controlled variables
A
-temperature and time the pondweed is left to photosynthesies
6
Q
how do you calculate the light intensity
A
light intensity (is proportional to) 1/(d)2
