Answer:

> Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

> The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.

> The raw materials of photosynthesis, water and carbon dioxide, enter the cells of the leaf, and the products of photosynthesis, sugar and oxygen, leave the leaf.

> The raw materials of photosynthesis, water and carbon dioxide, enter the cells of the leaf, and the products of photosynthesis, sugar and oxygen, leave the leaf. Cross section of a leaf, showing the anatomical features important to the study of photosynthesis: stoma, guard cell, mesophyll cells, and vein.

Answer:

1. Photosynthesis is a physiological process by which green plants in the presence of sunlight and chlorophyll prepare food in the form of glucose and starch using carbon dioxide and water.
2. equation: 6 CO2 + 12 H2O → C6H12O6 + 6 O2 ↑ + 6 H2O ( in the presence of sunlight and chlorophyll. )
3. raw materials required for photosynthesis :

• carbon dioxide ( CO2 )
• water ( H2O )
• radiant ( solar ) energy, and
• chloroplasts

4. products of photosynthesis :

• glucose ( food )
• oxygen ( O2 )
• water ( H2O )

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