Observing Onion Peel Structures

A unicellular organism is an organism that consists of a single cell, such as Amoeba, Chlamydomonas, Paramoecium, and bacteria.

Multicellular organisms develop from a single cell through cell division, where cells divide to produce cells of their own kind.

The purpose of the activity is to observe and compare the shape, size, structure, and differences among cells from different parts of a plant body.

<p>The discovery of the electron microscope in 1940 made it possible to observe and understand the complex structure of the cell and its various organelles.</p> Signup and view all the answers

<p>The invention of magnifying lenses led to the discovery of the microscopic world.</p> Signup and view all the answers

<p>We observe similar structures that together form a big structure like an onion bulb.</p> Signup and view all the answers

<p>Robert Hooke discovered cells in 1665 while observing a cork slice with a primitive microscope.</p> Signup and view all the answers

<p>Purkinje coined the term 'protoplasm' in 1839.</p> Signup and view all the answers

<p>The cell theory was proposed by Schleiden (1838) and Schwann (1839).</p> Signup and view all the answers

<p>Virchow suggested that all cells arise from pre-existing cells in 1855.</p> Signup and view all the answers