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BIO NMDCAT Conjugated molecules
nmdcat.online July 3, 2026

69. The structural role of the conjugated molecule known as lipoteichoic acid in Gram-positive bacterial cell walls is to

A. Serve as an alternative genetic template
B. Anchor the peptidoglycan layer to the underlying plasma membrane
✓
C. Catalyze the synthesis of ATP molecules in the periplasm
D. Store excess amino acids during periods of starvation

📝 Explanation

Lipoteichoic acids span the thick peptidoglycan layer and use their lipid tails to anchor the wall assembly into the cytoplasmic membrane.

📖 Additional Information

  • Serve as an alternative genetic template
  • Anchor the peptidoglycan layer to the underlying plasma membrane
  • Catalyze the synthesis of ATP molecules in the periplasm
  • Store excess amino acids during periods of starvation

Lipoteichoic acids span the thick peptidoglycan layer and use their lipid tails to anchor the wall assembly into the cytoplasmic membrane.

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