What pigments are used in photosynthesis? | Yahoo …
Chlorophyll is the molecule that traps this 'most elusive of all powers' - and is called a photoreceptor. It is found in the chloroplasts of green plants, and is what makes green plants, green. The basic structure of a chlorophyll molecule is a , co-ordinated to a central atom. This is very similar in structure to the group found in , except that in heme the central atom is iron, whereas in chlorophyll it is magnesium.
19/05/2011 · What pigments are used in photosynthesis
Current understanding is that the earliest photosynthetic organisms were aquatic bacteria, some of which are still around today. One of these, halobacterium halobium, grows in extremely salty water. It makes use of the bacteriorhodopsin pigment. The chlorophyll system developed to use the available light, as if it developed in strata below the purple bacteria and had to use what it could get.
But what about the development of land plants? Why did they stay green? The thoughts are that they had plenty of light and were not pressured to develop more efficient light gathering. That is, the light was not the limiting resource in photosynthesis for plants.
What are the main photosynthetic pigments
The granum (plural grana) is a stack of which contains the photosynthetic pigments; this is where the light dependent stage takes place:
Which is the main light-absorbing pigment for - …
Chlorophyll a is the most common of the six, present in every plant that performs photosynthesis. The reason that there are so many pigments is that each absorbs light more efficiently in a different part of the electromagnetic spectrum. Chlorophyll a absorbs well at a wavelength of about 400–450 nm and at 650–700 nm; chlorophyll b at 450–500 nm and at 600–650 nm.
Which is the main light-absorbing pigment for photosynthesis
Chlorophyll is the green pigment found in most plants, algae, and cyanobacteria. It is contained in microscopic cell organelles called chloroplasts . Pigments are chemically porphyrin molecules, which have a metal ion at the center. The metal ion in hemoglobin is iron and in chlorophyll, it is magnesium. Chlorophylls absorb light at both ends of the visible spectrum – i.e. BLUE and RED light, and reflect green light. That is why chlorophyll appears green. Chlorophyll helps in absorbing energy from sunlight, which is used during photosynthesis. Chlorophylls are the main pigments as they are involved in the conversion of light energy into chemical energy.
What is the main pigment used by green plants to absorb energy
In green plants, the intricateapparatus required for such complex processes is located in thechloroplasts, the cell organelles that contain the chlorophyll.
What Is the Role of Pigments in Photosynthesis? | …
There is another photosynthetic pigment called carotenoid in plants. The carotenoids also absorb light energy but they pass it to the chlorophyll molecules. Chlorophylls are blue–green (chlorophyll–a) or green (chlorophyll– b) in color whereas carotenoids are orange (carotenes) or yellow (xanthophyll). Chlorophyll is highly sensitive to light, but too much light may destroy it.
What pigments are used in photosynthesis? | Yahoo Answers
The protein matterincludes some of the enzymes and coenzymes used in the photosyntheticprocess; the lipid portion contains two types of chlorophyll, alongwith other pigments that assist in absorbing light energy.