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P700 is a special form of which pigment?

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Important Questions on Photosynthesis

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With the help of a suitable diagrammatic representation explain HSK pathway.
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If a pure chlorophyll solution is illuminated with ultraviolet light, the solution appears:
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Which one of the following is NOT a role of accessory pigments?
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The graph below represents the absorption spectrum of a major pigment contributing to photosynthesis.

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Which one of the following best represents the photosynthetic efficiency of the pigment?

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Assertion (A): Chromatographic separation of leaf pigments shows that leaves has four different pigments.

Reason (R): Pigments absorb light at specific wavelengths and help in the process of photosynthesis. The major leaf pigments are chlorophyll-a, chlorophyll-b, xanthophylls and carotenoids. 

The correct option among the following is:

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Choose the correct statements among the following.
A) Chlorophyll is the major pigment responsible for the trapping of light, accessory pigments also participate
B) In green plants, H2O is the hydrogen donor
C) In purple sulfur bacteria the oxidation product is carbon
D) Radioisotope studies proved water as a source of O2 release in photosynthesis.
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A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consisting of A benzanilide B aniline and C acetophenone. When the column is eluted with a mixture of solvents, hexane:ethyl acetate 20:80 , the sequence of obtained compounds is:
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What is the advantage of having more than one pigment molecule in a photo center?
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Mention the advantages of having more than one pigment molecule in photocenter.
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Name photosynthetic pigments of bacteria.
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What is the difference between chlorophyll a and chlorophyll b?
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The brown colour of some algae is due to the presence of pigments
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Write a brief account of the chloroplast pigment.
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Which pigment is present universally in all green plants
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Which one of the following is not a accessory pigment
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Main pigment involved in transfer of electrons in photosynthesis is
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Accessory or shield pigments are
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Chlorophyll-a and b differ in having

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The role of carotenoids in photosynthesis is to