Q.105
ICAR AIEEA PG Plant Biotechnology 14 July 2023 Shift-1 Paper
MCQ (Single Correct) +4 −1
English हिन्दी
The nutrient element essential for the synthesis of chlorophyll precursor in the biosynthesis of chlorophyll molecule is:
क्लोरोफिल अणु के जैव संश्लेषण में क्लोरोफिल के अग्रदूत के संश्लेषण के लिए कौन सा पोषक तत्व अनिवार्य है?
EXPLANATION Mineral Nutrition: Essential Macro/Micro Nutrients, Uptake Mechanisms and Deficiency Symptoms

Option analysis:
(A) In plants and algae, 5-aminolevulinic acid (ALA) for chlorophyll synthesis is formed exclusively via the C5 / Beale pathway from glutamate (with GluTR rate-limiting), lacking the ALA synthase Shemin pathway found in animals.

Hence, Option 1 is the keyed answer.

विकल्प विश्लेषण:

  • पौधों और शैवालों में 5-एमिनोलेवुलिनिक एसिड (ALA) का निर्माण ग्लूटामेट से शुरू होने वाले C5 मार्ग द्वारा होता है।
  • जंतुओं और कवक में ALA का संश्लेषण ALA सिंथेज़ द्वारा होता है, जो पौधों में नहीं पाया जाता।
अतः पादपों में C5 ग्लूटामेट मार्ग संचालित होता है।
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Plant Biotechnology विषय एवं अध्याय

विषय एवं पाठ्यक्रम के अनुसार सभी अध्याय देखें

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