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Three of the graphs below show the absorption spectra of photosynthetic pigments. One graph shows the action spectrum of photosynthesis for a plant containing the pigments.

All the x axis show wavelength. Three of the y axis show light absorption. One y axis shows the rate of photosynthesis

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Important Questions on Photosynthesis in Higher Plants

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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
The percentage of sunlight captured by plants is
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
Cytochromes are found in:
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
The process which makes a major difference between C3 and C4 plants is:
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
The two enzymatic activities associated with RuBisCO are:
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis

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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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
Which one of the following options is true in photosynthesis?
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
Which of the following biomolecules is common to respiration mediated breakdown of fats, carbohydrates, and proteins?
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
Z- scheme is connected with ___.
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
With the help of a suitable diagrammatic representation explain HSK pathway.
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
Emerson's enhancement effect and red drop have been instrumental in the discovery of:
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
Which one of the following is NOT a role of accessory pigments?
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
Which statement is wrong for Krebs' cycle?
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
If  14CO2 is added to a suspension of photosynthesizing chloroplasts, which of the following will be the first compound to be radioactive?
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
Which of the following statements is incorrect?
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
Consider the following statements regarding photosynthesis and respiration in plants and select the correct option.
I. RuBisCO has high affinity to oxygen in low CO2 concentration.
II. The Calvin pathway occurs in the chloroplast of bundle sheath cells of C4 plants.
III. Yeast position themselves when the concentration of alcohol reaches 7%.
IV. Oxygen is a final hydrogen acceptor during aerobic respiration.
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
In C4 plants, C3 cycle takes place in
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
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?
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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
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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Biology>Plant Physiology>Photosynthesis in Higher Plants>Pigments involved in Photosynthesis
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: