EASY
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Which one of the following is not a accessory pigment

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Important Questions on Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.

EASY
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.
HARD
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?
MEDIUM

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:

MEDIUM
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: