Photosynthesis Der A Bassi

DEFINITION : Process of using energy in sunlight to convert water and carbon dioxide into oxygen and glucose.

Receive CO2 from the air

Use energy of sunlight Produce Oxygen and

I absorb water, minerals from the soil.

Equation of Photosynthesis : 

6CO2 +12H2O

Light energy

Carbon dioxide

Chlorophyll

C6H12O6 +6H2O+6O2 glucose+water+oxygen

Factors Effecting the Photosynthesis : Internal Factors Chloroplast Structure of leaf Quantity of Production

External Factors Light CO2 H2O

Temperature Oxygen

Raw Materials used for Photosynthesis : • •

Carbon dioxide (CO2 ) Water (H2O )

Process of Photosynthesis : Process of Photosynthesis is divided into two stages: • Light Reaction • Dark Reaction

Light Reaction • • •

Light is necessary for it. Light reacts with pigments in the leaf. Three changes are happened at the end : – O2 Released – ATP Formed – NADPH2 Formed

Calvin-Benson Cycle

Dark Reaction • • • •

Light is not necessary for it. It takes place in the stroma of chloroplast It reduces the power stored in ATP & NADPH. It may be understood by Calvin-Benson Cycle

Microscopic view of Photosynthesis

Prepared By:

Edited By:

Guided By:

References:

Nimmo Rani Jatinder Kaur Gurbir Kaur (Class 10th )

Computer Staff

Mrs. Alka Monga (Subject Teacher)

Text Book of Class 10th (PSEB) Text Book of Class 10th (CBSE)