Chlorophyll | definition of chlorophyll by Medical dictionary
What Role Does Chlorophyll Play in Photosynthesis? | …
is the molecule that absorbs sunlight and uses its energy to synthesise carbohydrates from CO2 and water. This process is known as and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also.
Photosynthesis, chloroplasts and chlorophyll ..
One of the major differences between chlorophyll and hemin is that chlorophyll contains magnesium while the hemin molecule contains iron as its central atom. Owing to the close molecular resemblance between chlorophyll and hemoglobin, scientist Hans Miller suspected that chlorophyll is nature's blood-building element for all plant eaters and humans. He wrote: "Chlorophyll has the same fast blood-building effect as iron in animals made anemic."
Biology Pictures: Chlorophyll in Photosynthesis
During the spring and summer the leaves have served as factories where most of the foods necessary for the tree's growth are manufactured. This food-making process takes place in the leaf in numerous cells containing chlorophyll, which gives the leaf its green color. This extraordinary chemical absorbs from sunlight the energy that is used in transforming carbon dioxide and water to carbohydrates, such as sugars and starch.
Chlorophyll Definition and Role in Photosynthesis
But in the fall, because of changes in the length of daylight and changes in temperature, the leaves stop their food-making process. The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor.