Chlorophyll molecule

Credit: DR TIM EVANS/SCIENCE PHOTO LIBRARY

Caption: Chlorophyll a. Computer model of the photoreceptor molecule chlorophyll a (C55.H72.Mg.N4.O5) found in green plants where it traps the energy in sunlight during photosynthesis. The atoms (solid tubes) of this molecule are colour-coded: carbon (C, green), hydrogen (H, white), magnesium (Mg, grey), oxygen (O, red) and nitrogen (N, blue). The central part of the molecule is the porphyrin ring surrounding the central magnesium atom. It is the arrangement of the electrons in the porphyrin ring that allows chlorophyll to absorb solar energy. Chlorophyll a is the major type of chlorophyll in green plants. The minor type, chlorophyll b, absorbs the energy of different wavelengths of sunlight.

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Keywords: artwork, atoms, biochemical, biochemistry, botanical science, botany, cell, chlorophyll, chlorophyll a, graphic, illustration, model, molecular, molecule, photoreceptor, photosynthesis, plant structure, plants, porphyrin ring, stick, structural, structure, tube

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