three non living structures of plant cell

>Plastids are spherical or oval cell organelles found only in plant cells. Plastids are of two types: leukoplasts without any colouring pigments and chromoplasts containing colouring pigments. The most familiar chromoplasts are the chloroplasts containing chlorophyll. ..

. Blue green algae (cyanobacteria) represent another major group of prokaryotes. Cyanobacteria are characterised by the presence of phycocyanin (blue) and chlorophyll (green) pigments. The Kingdom Protista includes primitive unicellular eukaryotic organisms. Protista are mainly represented by unice..

Introduction - The term growth is applied to several things and situations. It is quite common to hear people referring to growth of cities, the weeds, of tradition or even of indiscipline. You would have observed the growth of crystals or salt in the laboratory, but it is of non-living t..

The cell wall is present only in plant cells. It is made up of a complex polysaccharide (carbohydrate) called cellulose. Its function is to give strength and rigidity to the cell. It is non-living...

Cell Organelles - The word organelles (Latin: organas=instrument) is used to describe the living structures inside the cytoplasm, having definite shape, structure and functions. The various cell organelles in a cell can be broadly classifi..

Two German biologists M.J.Schleiden (1838) and Theodore Schwann (1839) proposed the cell theory (or cell doctrine), which unified the ideas prevailing at that period on the organisation in plants and animals. The cell theory states that All living o..

The history of the discovery of cells dates back to the 17 t h century and is closely associated with the history of the invention of microscopes. An Italian microscopist Marcello Malpighi studied the structure of some plants and proposed the idea that plants..

Introduction - The study of world of life is as old as man itself. All living organisms are made up of a few elements which are repeated in each of them. The basic unit of life - cell, is a structural and functional entity of lif..

Cells of onion peelMulticellular lifeform All living organisms, whether plants or animals, are made up of microscopic units called cells. The cell occupies the same central position in biology as the atom in the physical sciences. All living..

Summary - Growth is one of the most fundamental characteristics of living organisms. It is accompanied by differentiation. The growth cycle of an annual monocarpic angiosperm begins with the zygote which undergoes a period of dormancy. Later, the dormant embryo develops into a seedling wh..