EASY
Earn 100

Which pigment acts directly to convert light energy to chemical energy?

50% studentsanswered this correctly

Important Questions on Photosynthesis

EASY
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
The percentage of sunlight captured by plants is
EASY
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
Cytochromes are found in:
EASY
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
The process which makes a major difference between C3 and C4 plants is:
EASY
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
The two enzymatic activities associated with RuBisCO are:
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
Which one of the following options is true in photosynthesis?
EASY
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
Which of the following biomolecules is common to respiration mediated breakdown of fats, carbohydrates, and proteins?
EASY
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
Z- scheme is connected with ___.
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:

MEDIUM
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
Emerson's enhancement effect and red drop have been instrumental in the discovery of:
HARD
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
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 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:
MEDIUM
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
Which statement is wrong for Krebs' cycle?
MEDIUM
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
If  14CO2 is added to a suspension of photosynthesizing chloroplasts, which of the following will be the first compound to be radioactive?
MEDIUM
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
Which of the following statements is incorrect?
MEDIUM
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
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.
EASY
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
In C4 plants, C3 cycle takes place in
HARD
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
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?
EASY
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
Which one of the following is NOT a role of accessory pigments?
EASY
Biology>Plant Physiology>Photosynthesis>Photosynthetic Pigments
With the help of a suitable diagrammatic representation explain HSK pathway.