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Chlorosis is produced in leaves due to deficiency of Fe,Mg,Mn,N or S. Of these essential elements those are exclusive constituents of chlorophyll molecules are
Options
(a) Fe and S
(b) N and S
(c) Mg and S
(d) Mg and N
Correct Answer:
Mg and N
Explanation:
Chlorophyll molecules has a complex porphyring ring (head) to which is attached a long hydrophobic phytol(C₂₈H₃₉) chain(tail).Prophyrin is a cyclic tetrapyrrole, made up of four nitrogen containing pyrrole rings arranged in a cyclic fashion.Pyrrole rings are linked by methine(-CH=) bridges.In the central position of tetrapyrrole ring,the magnesium atom is present.
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Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In angiosperms, the endosperm is
- The net gain of energy from one molecule of sucrose in aerobic respiration is
- An essential element is one
- Pacinian corpuscles are abundantly found in
- Besides RBC blood plasma also carries O₂ in solution. The % is
Topics: Transport and Nutrition in Plants (163)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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