Vacuole

• What are vacuoles?


  Fluid-filled sacs that are bounded by a single membrane.
• Where are vacuoles found?

  In mature plant cells.
• What is the single membrane around the vacuole called?

  The tonoplast.
• What is the plant vacuole a solution of?

  Mineral salts, sugars, amino acids, wastes and sometimes pigments.
• What are the functions of a plant vacuole?

  To support herbaceous plants, its sugars and amino acids act as a temporary food store, and the pigments may colour petals to attract pollinators.
• How do vacuoles support herbaceous plants?

  By making cells turgid.