biology general biology

Animal Morphology..

Apart from hearing impairment, the first effects are anxiety and stress reaction and in extreme cases fright . The physiological manifestations are : Increase in the rate of heart-beat, increased cholesterol and blood pressure. Constriction of blood vessels Digestive spasms and stomach ..

Bio piracy refers to unauthorised and unlawful access to biological secret and use of such secrets for specific gain. In biological research many secrets have been unravelled. Genetic structures of potentially useful organisms, genetic structures of dangerous mutants o..

Respiration is defined as the catabolic biochemical process during which organic compounds break down in order to release energy. The organic compounds that are broken down are called the substrates. Glucose is the most common substrate. The general equation for respiration is ..

Respiration can be broadly defined as "the breakdown of organic compounds into simpler compounds accompanied by the release of energy in the form of ATP" Since most often the substrate is glucose, the general equation for respiration can be written as follows: ..

Central Dogma of Molecular Biology - The expression of the genetic material occurs generally through the production of proteins. This involves 2 consecutive steps which are: Transcription Translati..

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Nucleus is the most conspicuous and the largest organelle in the cell. Most cells have a single nucleus and hence they are described as uninucleate. Some cells have two nuclei (binucleate) while a few may be even multinucleate. A nucleus generally occurs in all eukaryotic cells. However, ..

Carbohydrates represent a class of biological molecules that are extremely important for cells since they serve as the chief source of energy. Carbohydrates are organic compounds containing carbon, hydrogen and oxygen. Hydrogen and oxygen occur in a carbohydrate molecule in the same rati..

Stamen forms the male reproductive unit and is made up of anther and the filament. The anther is generally bilobed with chamber containing several pollen grains. Pollen grains are produced in the anther . A very young anther comprises a mass of undifferentiated thin - walled cells bounded..