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BIO NMDCAT CELL STRUCTURE & FUNCTION
nmdcat.online July 3, 2026

5. The membrane that bounds the large central vacuole of a plant cell and regulates ion transport into the vacuolar sap is the

A. Plasma membrane
B. Tonoplast
✓
C. Cristae
D. Thylakoid membrane

📝 Explanation

The tonoplast is the specialized semi-permeable membrane enclosing the plant vacuole, containing active transport pumps to maintain cell turgidity.

📖 Additional Information

  • Plasma membrane
  • Tonoplast
  • Cristae
  • Thylakoid membrane

The tonoplast is the specialized semi-permeable membrane enclosing the plant vacuole, containing active transport pumps to maintain cell turgidity.

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