What is necessary for photosynthesis?(a) Chlorophyll(b) Sunlight(c) Carbon dioxide and water(d) All of the above

The correct answer is (d) All of the above.

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, specifically in the form of glucose. It requires several essential components, which are:

(a) Chlorophyll: Chlorophyll is a pigment found in chloroplasts, the specialized organelles in plant cells responsible for photosynthesis. Chlorophyll absorbs light energy from the sun and initiates the process of converting it into chemical energy.

(b) Sunlight: Sunlight is the primary source of energy for photosynthesis. The energy from sunlight is absorbed by chlorophyll, enabling the synthesis of organic compounds, such as glucose, from inorganic molecules.

(c) Carbon dioxide and water: During photosynthesis, plants take in carbon dioxide (CO2) from the atmosphere through small openings called stomata in their leaves. Water (H2O) is absorbed by the plant's roots from the soil and transported to the leaves. These two components, carbon dioxide and water, are used in the chemical reactions that occur during photosynthesis to produce glucose and oxygen.

In summary, all of the above components—chlorophyll, sunlight, carbon dioxide, and water—are necessary for photosynthesis to occur.