inputs for photosynthesis
Water, carbon dioxide, and light
Photosynthesis is a process by which green plants, algae, and some bacteria convert light energy from the sun into organic compounds such as glucose, which can be used by these organisms as a source of food and energy. The inputs required for photosynthesis include:
1. Light energy: Sunlight is the primary input for photosynthesis. It is absorbed by the pigments (mainly chlorophyll) in the plant’s leaves and captured as energy by the plant.
2. Carbon dioxide: Carbon dioxide (CO2) is a gas that is present in the atmosphere. It is the primary source of carbon for photosynthesis and is absorbed by the leaves through small pores called stomata.
3. Water: Water is a critical input for photosynthesis as it provides the hydrogen atoms and electrons needed for the production of glucose. Water is absorbed by the plant roots from the soil and transported to the leaves through the plant’s vascular system.
4. Chlorophyll: Chlorophyll is the pigment in plant cells that absorbs the light energy needed for photosynthesis. It is present in the chloroplasts, which are the organelles where photosynthesis takes place.
In addition to these inputs, other nutrients such as nitrogen, phosphorus, and magnesium are required for the growth and proper functioning of the plant. These nutrients are absorbed by the plant roots from the soil and transported to the leaves.
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