Photosynthesis investigation

Photosynthesis investigation Spot skill, Analysis and Evaluation


Aim
To investigate the effect changing the level of light has on the rate of photosynthesis.

What is photosynthesis?
Photosynthesis is the process through which light energy, water, and carbon dioxide are converted to carbohydrate and oxygen in the presence of chlorophyll. Photosynthesis takes place in the leaves.

Photosynthesis needs all the factors to work steadily, if we limit one of these factors the rate of photosynthesis will decrease. To prove this we are going to try investigating it on pondweed and limiting the amount of light it gets and seeing what the rate is and how it changes.
For photosynthesis to work effectively it needs:
• carbon dioxide
• water
• light energy
• chlorophyll
The carbon dioxide comes into the plant from the air in the atmosphere, whereas the water is absorbed by the root system and then travels up the stem through the transpiration system to the l...