Photosynthesis in Plants

The dark reaction takes place in the stroma, within the chloroplast, and converts CO₂ to sugar. This reaction does not directly need light in order, to occur, but it does need the products, of the light reaction (ATP and another chemical called NADPH). The dark reaction involves a cycle, called the Calvin cycle, in which CO₂ and energy from ATP are used, to form sugar.

The plants look green in color, due to the presence of peculiar organelle, referred as chloroplast and presence of light absorbing pigment, such as chlorophyll. The chlorophyll pigment in chloroplast, is capable to trap the sunlight, as primary source of energy, are able to fix the carbon dioxide present in the air and in turn produce the food molecule, in form of glucose or carbohydrates.

Photosynthesis is the biological process by which green plants and some other organisms convert light energy into chemical energy stored in glucose.

Garner and Allard are the scientists credited with the discovery of photoperiodism, which is the physiological reaction of organisms to the length of day or night.

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. This process converts light energy into stored chemical (biochemical) energy.

Chlorophyll is the pigment in plants that absorbs light energy to drive the process of photosynthesis.

During photosynthesis, plants take in carbon dioxide and water to produce glucose, releasing oxygen as a byproduct. Hydrogen and carbon dioxide are reactants, not waste products.

dark reaction

Photolysis is the process where light energy is used to split water molecules into oxygen, protons, and electrons during the light-dependent reactions of photosynthesis.

Cyanobacteria (blue-green algae) possess both Photosystem I and Photosystem II, similar to plants. Other photosynthetic bacteria like purple sulfur bacteria have only reaction center complexes similar to PS I. The question refers to cyanobacteria, which have the complete oxygenic photosynthetic apparatus with both photosystems.

Photosynthesis requires sunlight as an energy source, chlorophyll to capture that light, and carbon dioxide and water as raw materials to produce glucose and oxygen.

Photosynthesis is the process by which green plants use sunlight, water, and carbon dioxide to produce glucose and oxygen.

A granum is a coin-shaped stack of thylakoids which are the membrane-like structures found inside the chloroplasts of plant cells.