1. Living Organisms And The Environment:
Photosynthesis.

2. The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water

4. Photosynthesis takes place inside of the chloroplast of plant cells
Photosynthesis takes place inside of the chloroplast of plant cells. Chlorophyll can trap some of the light that strikes it and use the energy that light contains to break the molecules apart .

5. Light and Dark Stages Of Photosynthesis
Photosynthesis follows two distinct stages a light dependent stage and a light independent stage or dark stage.

6. Glucose Water in the presence of chlorophyll Given Off Hydrogen Oxygen
Light Stage
Dark Stage
Hydrogen
Glucose
Carbon Dioxide

7. In the light dependent stage water is split into Hydrogen and oxygen, the oxygen is given off as a by product of photosynthesis
The dark stage does not need light that does not say that it occurs at night.
It just means that light is not needed
In the dark stage hydrogen is combined with carbon dioxide to produce glucose

8. The glucose made in photosynthesis is used in many ways :
These are:
It is broken down during respiration to release energy so that the plant can carry out the processes of life.
It is converted to starch and stored in the leaf to be used in the night when the plant is not photosynthesising.
It is converted to sucrose and transported to other parts of the plant, where it can be converted to carbohydrates lipids and proteins and used for growth or converted to starch and stored e.g. in potatoes

9. So how does light affect the production of starch by the plant?
The rate of photosynthesis increases as light intensity increases and decreases as intensity decreases.
However there comes a time where the more light that is added does not increase the rate of photosynthesis? It just remains the same the plant is photosynthesising at optimal efficiency.

10. Carbon Cycle

12. NITROGEN CYCLE