BIO NMDCAT Conjugated molecules

nmdcat.online July 3, 2026

64. The presence of highly sulfated glycosaminoglycan chains in proteoglycans gives these conjugated molecules a dense

A. Net positive charge that attracts anions

B. Net negative charge that binds water and cations

✓

C. Hydrophobic shield that repels all polar substances

D. Covalent affinity for nuclear histone octamers

📝 Explanation

Sulfated and carboxylated sugars carry negative charges, creating electrostatic fields that draw in water molecules to form a resilient gel.

📖 Additional Information

Net positive charge that attracts anions
Net negative charge that binds water and cations
Hydrophobic shield that repels all polar substances
Covalent affinity for nuclear histone octamers

Sulfated and carboxylated sugars carry negative charges, creating electrostatic fields that draw in water molecules to form a resilient gel.

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