Why are living organisms classified?
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Multiple Choice Question
Which fundamental structural component of the bacterial cell wall is a heteropolymer made of alternating N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) residues cross-linked by short peptides?जीवाणु कोशिका भित्ति का कौन सा मौलिक संरचनात्मक घटक N-एसिटाइलग्लूकोसामाइन (NAG) और N-एसिटाइलम्यूरेमिक एसिड (NAM) अवशेषों से बना एक हेटरोपॉलीमर है जो छोटे पेप्टाइड्स द्वारा क्रॉस-लिंक्ड (cross-linked) होता है?
Explanation:
Peptidoglycan (murein) forms the rigid mesh-like structure of bacterial cell walls, protecting the cell from osmotic lysis. The peptide cross-links occur between the NAM residues.
पेप्टिडोग्लाइकन (म्यूरीन) जीवाणु कोशिका भित्तियों की कठोर जालीदार संरचना बनाता है, जो कोशिका को ऑस्मोटिक लिसिस (osmotic lysis) से बचाता है। पेप्टाइड क्रॉस-लिंक NAM अवशेषों के बीच होते हैं।
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This question belongs to the set "Biology Practice Test 11 – Unit 3 (Microbiology & Immunology – SET 3/4)". Click below to read detailed notes and attempt the full quiz.
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