Q11. Movement of ions into symplast area of a plant cell
(1) Is an active process
(2) Is metabolic phase of mineral absorption
(3) Does not involve transmembrane proteins
(4) Both (1) and (2)
Ans.4
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Q12. Read the following statements and choose the correct option.
A: Asparagine contains more nitrogen than aspartic acid.
B: Amides are derived from amino acids in which hydroxyl part of acid is replaced by another amino group.
(1) Only A is true
(2) Only A is false
(3) Both A and B are true
(4) Both A and B are false
Ans.3
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Q13. Mark the odd statement for ureides
(1) Transported via vessels
(2) Have low nitrogen to carbon ratio
(3) Formed in soyabean plant
(4) Produced inside nodule
Ans.2
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Q14. Which of the following is not a benefit of hydroponics?
(1) Controls soil borne pathogens
(2) Can regulate pH for a specific crop
(3) Can be used in areas having thin, infertile and dry soils
(4) High cost of setting
Ans.4
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Q15. Deficiency of which element is not responsible for death of leaf tissues?
(1) Mo (2) Ca
(3) Mg (4) K
Ans.1
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Q16. Elements found in ferredoxin are
(1) Fe and S (2) Fe and Ca
(3) Fe and Zn (4) Fe and Mn
Ans.1
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Q17. Read the following statements and mark them as True (T) or False (F).
A. Plants can assimilate ammonium ions only
B. Rhizobium is an obligate anaerobe
C. In legumes, nodule is formed by inner cortex and pericycle cells.
A B C
(1) T F T
(2) F F T
(3) F T F
(4) T F F
Ans.2
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Q18. Hydroponics
(1) Requires tap water and mineral nutrient salts
(2) is a technique of growing plants in a nutnant solution in the complete absence of soil md
(3) It has been successfully employed as technique for the commercial production of fruits like apple, orange etc
(4) The solution should be poorly aerated to obtain the optimum growth
Ans.2
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Q19. Which of the following option represents trade elements?
(1) Ca, Mg (2) P, K
(3) Fe, Mg (4) Mn, Mo
Ans.4
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Q20. Choose the correct match
Element Activator of
(1) Mg - PEPcase
(2) Zn - RuBisCo
(3) Mo - Catalase
(4) Fe - Nitrate
reductase
Ans.1
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