The Fundamental Unit of Life — Science STD 9 — Question
Gujarat BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
MCQ
Name the stain which is commonly used to study plant cells.
A
Methylene blue.
B
Cotton blue.
✓
Safranin.
D
Acetocarmine.
✓
Answer
Correct option: C.
Safranin.
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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