is resistance important

, (+) - thyroxine, has none of this effect but is used to lower the cholesterol levels. In foods, the chirality of compounds determines the nutritional value, sensory properties or biological activity. Enantiomers of a chemical may have very different flavors. Detection of an unnatural ratio of ena..

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 res..

The important uses of silicones are: 1) These are used in making electrical insulations. 2) These are used in making heat resistant container..

Transgenics - The organisms which contain functional genes which have been experimentally introduced by genetic engineering from another species are called transgenic organism or genetically modified organisms (GMOs). Present and future applications of transgenics. a. To produce transgenic plants w..

Uses - Fluorine - 1. It is mainly used for the manufacture of UF 6 for nuclear power generation. 2. It is also used for the preparation of many fluorinating agents. The important organic chemicals derived from HF are the chlorofluorocarbons and polytetrafluoroethylene (teflon). Chlorofluo..

The heating effect of current is utilised in the electrical heating appliances such as electric iron, room heaters, water heaters, etc. All these heating appliances contain coils of high resistance wire made of nichrome alloy. When these appliances are connected to power supply by insula..

Two parents of known well defined characters belonging to two different species within a genus are crossed to achieve heterosis. Some important hybrids (both inter specific and intra specific) are listed ..

Crude rubber is a tough and elastic solid. It becomes soft and sticky as the temperature rises. Its specific gravity is 0.915. The most important property of natural rubber is its elasticity. When stretched, it expands and attains its original state, when released. This is due to ..

Introduction - The word force in common usage refers to a push or pull. The word Mass is also just as familiar as the word force. A super tanker is one that contains an enormous amount of mass. In comparison a coin does not contain much mass. During the seventeenth century Newton developed three ..