$P_{700}$ is a special form of which pigment?

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Important Questions on Photosynthesis

EASY

Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments

With the help of a suitable diagrammatic representation explain HSK pathway.

EASY

Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments

If a pure chlorophyll solution is illuminated with ultraviolet light, the solution appears:

EASY

Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments

Which one of the following is NOT a role of accessory pigments?

MEDIUM

Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments

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?

MEDIUM

Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments

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:

EASY

Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments

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.

MEDIUM

Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments

A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consisting of