Physical state of protoplasm, Biology


Several theories have been given about its physical structure -

(i)  Granular Theory (Proposed by Altman, Hanstein, 1886) - Granules embedded in a fluid, those are known as bioplast/cytoplast. Henle & Megi used the word plastidules for granules

(ii)     Reticular Theory (Proposed by Fromman, Klein, Carnoy, 1885) - Reticulum of fibres embedded in a fluid.

(iii)    Fibrillar Theory (Proposed by Velton & Flemming, 1882) - Fibrils dispersed in a liquid.

(iv)    Alveolar Theory (Proposed by Butschli 1878) - Droplets or alveoli is present in it.

(v)   Crystallo-Colloidal Theory (Proposed by Fischer, Hardy Wilson 1894) - Substances dissolved and dispersed in water forming both true solution as well as colloidal solution.


Posted Date: 10/9/2012 2:34:07 AM | Location : United States

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