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BIO NMDCAT Conjugated molecules
nmdcat.online July 3, 2026

85. The biochemical feature that protects the protein backbone of lysosomal membrane glycoproteins from being digested by the acidic hydrolases inside the lysosome is

A. A thick protective layer of attached oligosaccharide chains
✓
B. The presence of embedded nuclear DNA markers
C. A continuous coating of non-polar cholesterol molecules
D. The inclusion of heavy metal ions like lead

📝 Explanation

Heavily glycosylated proteins form a protective sugar shield on the inner lysosomal membrane, protecting the peptide bonds from proteases.

📖 Additional Information

  • A thick protective layer of attached oligosaccharide chains
  • The presence of embedded nuclear DNA markers
  • A continuous coating of non-polar cholesterol molecules
  • The inclusion of heavy metal ions like lead

Heavily glycosylated proteins form a protective sugar shield on the inner lysosomal membrane, protecting the peptide bonds from proteases.

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