Define photosynthesis.?

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy in the form of glucose. This process involves the absorption of carbon dioxide and water, which are then converted into oxygen and glucose through the use of chlorophyll and other pigments. Photosynthesis is essential for the survival of plants and other organisms that depend on them for food and oxygen.

Photosynthesis is the process by which plants and other organisms use sunlight to convert carbon dioxide and water into glucose and oxygen. It is a vital process for life on Earth, as it provides the food and oxygen that we need to survive.

Photosynthesis occurs in the chloroplasts of plant cells. Chloroplasts are small, green organelles that contain chlorophyll, a green pigment that absorbs sunlight. When sunlight strikes a chlorophyll molecule, it knocks an electron off of the molecule. This electron is then passed along a series of electron carriers, which eventually pass the electron to NADP+ (nicotinamide adenine dinucleotide phosphate).

NADP+ is then used to reduce carbon dioxide to glucose. Glucose is a sugar that plants use for energy. The oxygen that is produced as a byproduct of photosynthesis is released into the atmosphere.

Photosynthesis is a complex process, but it is essential for life on Earth. It provides the food and oxygen that we need to survive, and it helps to regulate the Earth's climate.