photosynthesis rp Flashcards
1
Q
what is the first step
A
place a test tube filled with sodium hydrogen carbonate solution 10cm away from a LED bulb and add cut pondweed to it
2
Q
what is step 2
A
start a timer and count how many bubbles are produced in a minute and repeat this and workout a mean
3
Q
how can measure the volume of oxygen produced
A
using a funnel and measuring cylinder
4
Q
what is the inverse square law
A
if we double the distance away from the light source, the number of bubbles drops by a factor of 4
