Photosynthesis
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Avg score: 79% • Most missed: “The substrate for photorespiration is[1989]”
Photosynthesis
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25 Questions

1. Pigment acting as a reaction centreduring photosynthesis is [1994]
2. A process that makes importantdifference between C3 and C4 plants is:[2012]
3. The enzyme that catalyses carbondioxide fixation in C4 plants is [1992]
4. Formation of ATP in photosynthesisand respiration is an oxidation processwhich utilises the energy from [1992]
5. Cyclic photophosphorylation resultsin the formation of [2009]
6. Photosynthesis in C4 plants isrelatively less limited by atmosphericCO2 levels because: [2005]
7. The C4 plants are photosyntheticallymore efficient than C3 plants because:
8. The wavelength of light absorbed byPr form of phytochrome is [2007]
9. The first acceptor of electrons froman excited chlorophyll molecule ofphotosystem II is [2007]
10. Plants adapted to low light intensityhave [2004]
11. In photosynthesis energy from lightreaction to dark reaction is transferredin the form of [2002]
12. The carbon dioxide acceptor inCalvin cycle/ C3-plants is [1993 - 95 - 96 - 99]
13. Chlorophyll -—a-˜ molecule at itscarbon atom 3 of the Pyrrole ring II hasone of the following [1996 - 97]
14. Photoperiodismwasfirstcharacterised in: [2010]
15. All types of plastids possessessentially the same structure becausethey [1992]
16. In photosystem-1the first electronacceptor is [2006]
17. Which element is located at thecentre of the porphyrin ring inchlorophyll? [2003]
18. PGA as the first CO2 fixationproductwasdiscoveredinphotosynthesis of: [2010]
19. C4-cycle was discovered by [1994]
20. The first step of photosynthesis is[2000]
21. The principle of limiting factors wasproposed by [1996]
22. Which enzyme is most abudantlyfound on earth? [1999]
23. Cytochrome is [2001]
24. A photosynthesising plant isreleasing 18O more than the normal.The plant must have been supplied with[1993]
25. Which one is a C4-plant? [1993]

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