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The Fundamental Unit of Life — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
Question
Name the stain which is commonly used to study plant cells.
✓

Answer

  1. Safranin.
Explanation:
Safranin is a staining agent used in histology and cytology to color the cells and visualize them under the microscope. Safranin reacts with lignin and stains it red. Therefore, only the lignified tissues such as xylem and sclerenchyma are turned red and all other tissues like parenchyma, collenchyma, and phloem remain colorless.

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