The Basic Types of Movements
Movement involves 3 basic mechanisms. They are amoeboid, ciliary and muscular. Amoeboid movement is typically found in amoeba, a unicellular animal. Amoeba moves by producing pseudopodia, which are cytoplasmic projections. This involves change in the shape of the cell body and ..
Chemical Effects of Current
Introduction - The phenomenon of electrolysis is an important chemical effect of electric current. In a metallic conductor, the electric current is due to the drifting of free electrons, there is no chemical or physical change, only the generation of heat. However, in ionic solutions (electrolytes)..
Proof of Matter From Brownian Motion
Evidence for Particulate Nature of Matter From Brownian Motion - When we look at a glass of still water on the table, it seems incredible that millions of molecules are moving about restlessly inside it. A British botanist called Robert Brown, however, discovered evidence of this movement..
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