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The main part of an onion, the thick layers, can have many layers of cells stacked on top of each other. Between the layers, there is a thin skin (onion skin) which is a single layer of cells. The single layer makes it easy to for a student to study the cell structure under a microscope.

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10y ago

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Vegetable with many layers?

An onion can be considered a vegetable with many layers. Each layer is thin and distinct, contributing to the overall flavor and composition of the vegetable.


Does an onion cell have more than one nucleus?

more than one cell cause of the many layers.


What is the difference between an onion cell and a cheek cell?

Cheek cells are only found in animals, whereas onion cells are found in platns, particularly onion cells. Cheek cells, being animal cells, do not contain a cell wall as onion cells do becasue cell walls are found only in plant cells for structure and rigidness. Onion cells, unlike most plant cells, do not have chlorplasts becasue it does not need sunlight for photosynthesis as other plants do. Being grown underground, it receives nutrients directly from the soil, so chloraplasts are not evident. This is also why onions are never green, since chloroplasts contain chlorpohyll, a pigment which gives plants its green color. Basically, cheek cells are found in animals, and onion cells are found in plants.


How many cell layers compose a Poriferan?

A Poriferan typically consists of two cell layers: the outer epidermis and the inner layer of cells called choanocytes. These cells are separated by a gel-like matrix called mesohyl.


What is the type of coating on a bacteria cell?

In bacteria, the cell wall is composed of peptidoglycan, and is essential to the survival of many bacteria. Bacteria have been classified into Gram-positive and Gram-negative based on the structure of the cell wall. Gram-positive bacteria possess thick cell wall consisting of many layers of peptidoglycan and teichoic acids. Gram-negative bacteria have relatively thin cell wall consisting of few layers of peptidoglycan.