Photosynthetic pigment
Photosynthetic Pigment
Photosynthetic pigment (pronunciation: /ˌfoʊtoʊsɪnˈθɛtɪk ˈpɪgmənt/) is a type of biological pigment involved in the process of photosynthesis in plants, algae, and certain bacteria.
Etymology
The term "photosynthetic pigment" is derived from the Greek words "phos" (light), "synthesis" (putting together), and the Latin "pigmentum" (coloring), referring to the substance's ability to absorb light and use it to synthesize food in plants.
Function
Photosynthetic pigments are responsible for absorbing and converting light energy, primarily from the sun, into chemical energy via photosynthesis. The main types of photosynthetic pigments are chlorophylls, carotenoids, and phycobilins. Each pigment absorbs light at different wavelengths, allowing plants to maximize the use of available light.
Chlorophylls
Chlorophylls are the most common type of photosynthetic pigment and are responsible for the green color of plants. They absorb light most efficiently in the blue and red wavelengths, reflecting green light.
Carotenoids
Carotenoids are a group of pigments that absorb light in the blue and green wavelengths, reflecting yellow, orange, and red light. They are responsible for the colors of autumn leaves and many fruits and vegetables.
Phycobilins
Phycobilins are water-soluble pigments found in cyanobacteria and certain algae. They absorb light in the green and orange wavelengths, reflecting red or blue light.
Related Terms
External links
- Medical encyclopedia article on Photosynthetic pigment
- Wikipedia's article - Photosynthetic pigment
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