Investigating The Rate Of Photosynthesis

Question 1

What is needed for the practical?

Answer 1

Lamp
Meter ruler
Pond weed inside a boiling tube closed with a bung
Delivery tube attached to syringe going inside the boiling tube
Ruler
Water bath at constant temperature

Question 2

How to calculate rate of reaction?

Answer 2

Cm of bubble divided by minutes

Question 3

What is the inverse square law?

Answer 3

Light intensity decreases in proportion to the square of the distance

light intensity=2/d*2