叶绿素(国外英文资料).docVIP

叶绿素 chlorophyll chlorophyll The green pigment in the photosynthetic membrane, which is the main component of photosynthesis to capture light, is the most important pigment associated with photosynthesis. Photosynthesis is the process of converting light energy into chemical energy by synthesizing organic compounds. Chlorophyll is actually found in all organisms that can make photosynthesis, including green plants, blue-green algae from the prokaryotes, and eukaryotic algae. Chlorophyll absorbs energy from light, and energy is then used to convert carbon dioxide into carbohydrates. Chlorophyll has several different types: chlorophyll a and b are major types, seen in higher plants and green algae. Chlorophyll c and d are found in various types of algae, often with chlorophyll a; Chlorophyll c is rare in some golden algae; Bacterial chlorophyll is found in certain bacteria. In green plants, chlorophyll is found in membrane-shaped units (cysts) in the organelles called chloroplasts. The chlorophyll molecule contains a central magnesium atom, which is surrounded by a nitrogen structure called a porphyrin ring. A long carbon-hydrogen side chain (called the leaf green alcohol chain) is attached to the porphyrin ring. The different types of chlorophyll are caused by slight variations in certain lateral bases. Chlorophyll is structurally similar to hemoglobin, a pigment used in the red blood cells of mammals and other vertebrates to carry oxygen. Chlorophyll is a chlorin pigment, which is structurally associated with porphyrin pigments such as heme. There is a magnesium atom in the center of the bihydroporphylphenol ring. Chlorophyll has multiple side chains, usually including a long phytyl chain. Here are some of the chlorophyll you can find in nature: Chlorophyll is involved in the global carbon cycle Japan has found that chlorophyll D may affect the global carbon cycle. Tokyo in August 2008, a Japanese research team in a new period of the United States in the journal scie