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प्रश्न
Which property of the pigment is responsible for its ability to initiate the process of photosynthesis? Why is the rate of photosynthesis higher in the red and blue regions of the spectrum of light?
उत्तर
Pigments are substances that have the ability to absorb light, at specific wavelengths. This property of the pigment is responsible for its ability to initiate the process of photosynthesis.
The wavelengths at which there is maximum absorption by chlorophyll a, i. e. in the blue and the red regions, also show a higher rate of photosynthesis.
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 Wavelength of light in nanometers (nm) (b) |
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संबंधित प्रश्न
Consider an experiment, where thylakoids are removed and kept in a culture medium. The medium is supplemented with all the requisites of photosynthesis, i.e. \[\ce{CO2}\], \[\ce{H2O}\]. The setup is exposed to light. Hexose sugar is not formed as the end product.
Choose the option that justifies the above result.
Which of the following is the site of photolysis of water?
Which light range is least effective in photosynthesis?
Dark reaction in photosynthesis is called so because ______.
The correct sequence of flow of electrons in the light reaction is ______.
Does moonlight support photosynthesis?
The entire process of photosynthesis consists of a number of reactions. Where in the cell do these take place?
Synthesis of ATP and NADPH ______
The entire process of photosynthesis consists of a number of reactions. Where in the cell do these take place?
Synthesis of sugar molecule ______
The entire process of photosynthesis consists of a number of reactions. Where in the cell do these take place?
Synthesis of starch ______
In the figure given below, the black line (upper) indicates action spectrum for photosynthesis and the lighter line (lower) indicates the absorption spectrum of chlorophyll a. Answer the following:
- What does the action spectrum indicate? How can we plot an action spectrum?
- How can we derive an absorption spectrum for any substance?
