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Cell Wall in Plant Cells
A cell wall surrounds the plasma membrane in all plant cells. It is a porous covering of about 0.1 milli microns to 10 milli microns in size. The cell wall is chiefly composed of insoluble polysaccharides. The most common constituent is cellulose. Certain oth..
Dedifferentiated Cells
Dedifferentiated cells are specialised cells, which can revert back to an embryonic state. Dedifferentiation is seen in dicot plants, particularly at the time of secondary growth. It is also seen in the process of regeneration that involves the ability of an anim..
The main differences between a typical animal cell and a typical plant cell are summarized below:
Animal cell Plant cell Usually smaller in size Usually larger in size Cell wall is absent. Cellulose in any form is absent Cell wall made up of cellulose is present Cytoplasm is denser, more granular and occupies m..
Cell Theory and Cell Principle
Cell Theory - 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 ..
Plant Cell
Peel off the thin epidermis (skin) in the inner layer of an onion. Neatly spread it in the centre of a glass slide on a drop of water...
Peel off the thin epidermis (skin) in the inner layer of an onion. Neatly spread it in the centre of a glass slide on a drop of water...Animal Cell
Scrape the inside of your cheek using an ice-cream spoon. Spread the tissue in a drop of water on a glass slide...
Scrape the inside of your cheek using an ice-cream spoon. Spread the tissue in a drop of water on a glass slide...Cell Animation
Cell As A Unit Of Life..
Cell As A Unit Of Life..Prokaryotic and Eukaryotic Cells
.10 - Prokaryotic and Eukaryotic Cells The eukaryotic cells have an organised nucleus. The genetic material is found forming a distinct thread like chromatin. It is bound by a distinct nuclear membrane that separates it from the surrounding cytoplasm. Membrane bound cell..
CELL BIOLOGY
Cell Structure Enzymes Prokaryotic cells, eukaryotic cells (including those from plants and animals) Viruses - complexity and general structure Central Dogma of molecular biology Role of the endoplasmic reticulum Golgi apparatus Usable..
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