Biology Photosynthesis

Question 1

What is the aim?

Answer 1

To investigate the effect of light intensity on the rate of photosynthesis using an aquatic organism such as pond weed

Question 2

Photosynthesis equation

Answer 2

Carbon dioxide + water -> glucose + oxygen

Question 3

Scientific way of photosynthesis equation

Answer 3

6CO2+6H20 -> C6H12O6 +6O2

Question 4

What is photosynthesis

Answer 4

Process in which plants, algae and some bacteria transform carbon dioxide and water into glucose and oxygen, in the presence of light.

Question 5

What will you do in this practical?

Answer 5

will use pondweed to study how varying light intensity affects the rate of photosynthesis, observable through the production of oxygen bubbles. By adjusting the distance between the pondweed and a light source, you will directly measure the impact of light intensity on photosynthesis.

Question 6

Dependent variable

Answer 6

Numb of oxygen bubbles given off

Question 7

Independent variable

Answer 7

Light intensity

Question 8

Control variable

Answer 8

Size of pondweed, vol of water used and temp of water

Question 9

What is the role of measuring cylinder

Answer 9

To measure the volume of gas produced by the pondweed

Question 10

What is the purpose of repeating the experiment at diff distances?

Answer 10

To investigate the effect of light intensity on the rate of photosynthesis