Question

A well stained leaf peel mount when observed under the high power of a microscope shows nuclei in: (1) only epidermal cells (2) only guard cells (3) guard cells and epidermal cells (4) guard cells,epidermal cell and stoma

Answer 1

● If a well stained leaf mount is observed under the high power microscope then nuclei are observed in in guard cells and epidermal cells which is option C.

● Usually when a stained leaf Mount is observed under high power microscope then along with epidermal cells and guard cells stomata are also observed on the slide.

● Generally stomatal cells are devoid of nucleus hence they cannot be observed under microscope after staining.

Answer 2

A well ‘stained leaf peel’ mount when observed under the ‘high power of a microscope’ shows nuclei in ‘guard cells and epidermal cells’.

Explanation:

• The guard cells in leaves are bean-shaped structures surrounding each stoma which are openings through which transpiration takes place.  

• Guard cells are a type of modified epidermal cell which functions depending on the availability of amount of water.  

• Epidermal cells form the top layer of leaf cells. Typically they have a cuticle and have nucleus.  

• They provide a waxy texture to leaves. Under a microscope, these are the two types of cells which will be visible for nuclei.

Learn more about guard cells and epidermal cells

Differences between guard cells and epidermal cells

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