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The Fundamental Unit of Life — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
MCQ
Temporary mount of a peel is made in:
  • A
    Alcohol.
  • B
    Water.
  • ✓
    Glycerine.
  • D
    Acetone.
✓

Answer

Correct option: C.
Glycerine.
Temporary mount of a leaf peel is used to observe stomata. Stomata are small openings found widely scattered on the epidermis of leaves and young stems.
Glycerine is a dehydrating agent. Once glycerine is added it forms a protective layer that keeps it moistened. It avoids the drying of the specimen. If staining is done after adding glycerine then the specimen will not be stained properly because the stain will be washed off with glycerine.

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