UPSC Civil Services Agriculture Prelims Exam Previous Years Question Papers

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20. What is the role of ~ n ~ ' in
photosystem-I1 complex of photo- synthesis?
(a) Release of O2
(b) Activation of RuBP carboxylase
(c) Production of ATP
(d) Reduction of NADP+ I

21. Which one of thc following nutrients
is closely related with the
carbohydrate transport within the
plants?
(a) Manganese
(b) Potassium
(c) Phosphorus
(d) Boron

23. The aerobic respiratory cycle 56
associated '. with nitrogen
metabolism through which of thc
following intermediate compounds?
(a) 1 aketoglutaric acid : 6 -
f s.
(b) Oxalosuccinic acid
(c) Citric acid I
(d) Malate

24. In which of the following does the
biochemical fixation of GO2 by
RuBP carboxylase in plants having
Cq photosynthesis take place?
(a) Chloroplasts of the mesophyll
(b) Cytoplasm of the bundle
sheath cell
(c) Chloroplasts of thc bundle
sheath cells
(d) Cytoplasm of the. mesophyll
cell ,






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