Q121. Minerals which maintain cation-anion balance in cells are
(1) CI, K (2) Fe, Cu
(3) K, P (4) Ca, Fe
Ans.1
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Q122. Which of the following groups of elements are mobile?
(1) Fe, Ca, B (2) CI, K
(3) B, K, N (4) Ca, Mg, P
Ans.2
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Q123. Which of the following elements are required for chlorophyll synthesis?
(1) Fe and Mg
(2) Mo and Ca
(3) Cu and Ca
(4) Ca and K
Ans.1
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Q124. If chlorophyll is burnt, then which of the following is left in ash?
(1) Manganese
(2) Magnesium
(3) Iron
(4) Sulphur
Ans.2
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Q125. Which is not a trace element?
(1) Mn (2) Ca
(3) Mo (4) K
Ans.4
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Q126. Find odd one (w.r.t. critical element)
(1) Nitrogen
(2) Potassium
(3) Nickel
(4) Phosphorus
Ans.3
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Q127. Silicon, Cobalt, Sodium and Selenium are
(1) Essential minerals
(2) Beneficial elements
(3) Macronutrients
(4) Trace elements
Ans.2
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Q128. Tryptophan synthesis, carboxylase activity and little leaf of plants are all associated with
(1) Zn (2) B
(3) Ca (4) Cu
Ans.1
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Q129. Mineral which is part of CoA, Fd, thiamine and lipoic acid is
(1) Mn (2) Fe
(3) S (4) Ca
Ans.3
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Q130. Hunger signs in plants are
(1) Symptoms due to lesser water absorption in plants
(2) Symptoms due to poor photosynthesis in plants
(3) Deficiency symptoms of mineral nutrients
(4) Symptoms due to excess water absorption in plants
Ans.3
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