Question

While preparing a slide for observing onion peel under a microscope, the onion peel is immediately kept in a watch-glass containing a drop of water. Why this is done?

• A. To stain the cells
• B. To prevent the peel from drying
• C. To increase magnification
• D. For better clarity

Answer 1

Answer: (B)

To prevent the peel from drying

The onion peel is put immediately in a watch-glass containing water. prevent the peel from getting folded or getting dry. Dryness and folds in the onion peel will hamper the correct visualization of onion cells in the microscope.

So, the correct answer is option B.