Q. No.
Range of wavelength at which chlorophyll-a shows the maximum absorption in blue region:
a. 400-450 nm
b. 450-500 nm
c. 650-700 nm
d. 500-600 nm.
Which of the following is the chief pigment associated with photosynthesis?
1. chl-a
2. chl-b
3. chl- a and xanthophylls
4. chl-a and carotenoids
Which regions of the visible spectrum are responsible for most of the photosynthesis?
a. blue and yellow
b. blue and red
c. blue and green
d. green and red
In photosystem-I, P700 refers to-
| 1. | chl-b |
| 2. | chl-a |
| 3. | number of pigment molecules |
| 4. | absorption peak of chl-a at 700nm. |
Light harvesting complexes are made up of-
1. proteins
2. pigments
3. protein and pigments
4. proteins and lipids.
In chloroplast the movement of electrons from PS-II to electron transport system is-
| 1. | uphill in terms of redox potential scale. |
| 2. | downhill in terms of redox potential scale. |
| 3. | from one cytochrome to another |
| 4. | None of the above. |
In the Z-scheme of light reaction, at how many positions an electron is excited by the light?
1. 1
2. 2
3. 3
4. 4
Which of the following statement is incorrect?
| 1. | Electrons to PS-I are provided by PS-II |
| 2. | Electrons to PS-II are provided by the splitting of water |
| 3. | Electrons to PS-I are provided by the splitting of water |
| 4. | PS-II is physically located on the inner side of the membrane of the thylakoid. |
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