practical to make temporary mount of fleshy leaf of onion to show the epidermal cells
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Explanation:
Onions have epidermal cells that make a protective layer and help against fungi and viruses which may destroy its sensitive tissues.
They are transparent and have a very simple structure. That is why students can understand plasmolysis and plant anatomy easily.
The epidermal cells can be found in a single layer and they do not have chloroplasts. The onion bulb stores energy and does not contribute to photosynthesis.
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