Rates Of Photosynthesis Flashcards
Carbon dioxide + water - Glucose + Oxygen
6CO2+6H2O - C6H12O6+6O2
Investigation
Investigate how various different factors could affect the rate of photosynthesis.
What factor is affecting the rate of photosynthesis?
Light Intennsity
Where does the pond weed go?
Into a boiling tube.
Why is Sodium hydrogen carbonate solution poured into the boiling tube?
It will encourage the pond weeds to photosynthesise.
How far down should the pond weed go?
The pond weed should go right below the level of the water.
Where should the pond weed be cut?
Cut while under water the stem of the pond weed.
How do you measure the rate of photosynthesis?
By counting the number of bubbles of oxygen gas that leave the cut stem.
The independent variable is the
Light intensity
What light source is used?
A LED light source at school and also a light bulb.
Where does the ruler go?
