biology ii osmosis animation

Summary - Excretion is the elimination of waste products from the body. The non - volatile products are mainly excreted in the urine. The urinary system consists of those organs which form, store and void urine. The nitrogenous wastes are mainly produced by catabolism of proteins. Animals..

In unicellular organisms a single cell carries out all the life processes as the cell itself is the organism. In advanced forms like the few-celled algae, protozoa, sponges, etc., the size of the organism ensures that all the cells are not very far from each other. The uptake of materials from the ..

Excretion is the elimination of waste products from the body. The non - volatile products are mainly excreted in the urine. The urinary system consists of those organs which form, store and void urine. The nitrogenous wastes are mainly produced by catabolism of proteins. Animals are ammon..

In lower organisms, there is no transport system as the cells are in touch with the surrounding medium. The transport is by the physical processes like diffusion, osmosis, etc. With the advancement in structure, the organisms have to evolve methods to transport nutrients and wastes. ..

The movement of solvent molecules from the region of their higher concentration to the region of their lower concentration through a semi permeable membrane is called osmosis..

It is a process involving net diffusion of water molecules from a region of higher water concentration to a region of lower water concentration through a semipermeable membrane. The osmotic movement of water from a surrounding medium into a cell is called endosmosis. Such a medium is described as h..

By this technique sewage water can he converted into fairly clean drinking wate..

In the absorption of water by plants Cell to cell movement of water occurs throughout the plant body The rigidity of plant organs is maintained Leaves become turgid and expand due to osmotic pressure Growing points of root remain turgid and penetrate the soil particles The resistan..

1) They enrich the soil with their excreta 2) Insects help in pollination and some birds and animals help in dispersal of fruits and seeds. 3) Burrowing animals like earthworm make soil porous to facilitate plant growth. 4) They provide food (meat, eggs, oil) fur, woo..

Animal Kingdo..