Notes and Study material for Exams
Carbohydrates (glucose, sucrose and cellulose) Carbohydrates (also called saccharides) are molecular compounds made from just three Elements: carbon, hydrogen and Oxygen. Monosaccharides (e.g. glucose) and disaccharides (e.g. sucrose) are relatively small Molecules. They are often called sugars. Other carbohydrate molecules are very large (polysaccharides such as starch and cellulose). Carbohydrates are: a Source Of Energy … Read more
Human Eye Human eye, in humans, specialized sense organ capable of receiving visual images, which are then carried to the brain. The eye is protected from mechanical injury by being enclosed in a socket, or orbit, which is made up of portions of several of the bones of the skull to form a four-sided pyramid, … Read more
Importance of SERICULTURE IN INDIA and Karnataka Historical perspectives of Sericulture in India During Pre-independence period Sericulture in India has a remote past dating back to several centuries prior to the commencement of the Christian era. It has been held that mulberry culture came from China to India around 140 B.C. But there have been … Read more
An ecosystem is defined as the structural and functional unit of Biosphere consisting of community of living beings and the physical Environment, both interacting and exchanging materials between them. Ecosystems vary greatly in size and Elements, but each is a functioning unit of nature. There are two components of ecosystems i.e. biotic and abiotic. Ecosytems … Read more
Some Important Organic Compounds The chemical compounds of living things are known as organic compounds because of their association with organisms and because they are carbon-containing compounds. Organic compounds, which are the compounds associated with life processes, are the subject matter of organic chemistry. Among the numerous types of organic compounds, four major categories … Read more
P and SM (Preventive and Social Medicine) The name preventive and social medicine emphasizes the role of: Disease prevention in general through immunization, adequate Nutrition, etc. in addition to the routine hygiene measures, and Social factors in Health and disease. The name preventive and social medicine has gained wide acceptance in the past twenty-five years … Read more
Solar Energy : Source, Solar heating devices, solar cooker solar cell Sunlight is Earth’s most abundant energy source and is delivered free of charge. Indeed, the energy from sunlight reaching the land surface of the earth is thousands of times greater than the world’s current total annual consumption of energy. Yet harnessing sunlight’s energy content directly—rather than … Read more
Evolution, simply put, is descent with modification. This definition encompasses small-scale evolution (changes in gene frequency in a Population from one generation to the next) and large-scale evolution (the descent of different species from a common ancestor over many generations). Evolution helps us to understand the history of life. Evolution is not simply a matter … Read more
Endocrine Glands: harmone and their function The Endocrine System is made up of glands that produce and secrete HORMONES, chemical substances produced in the body that regulate the activity of cells or organs. These hormones regulate the body’s Growth, Metabolism (the physical and chemical processes of the body), and sexual development and function. The hormones … Read more
Medium of Propagation Sound is a sequence of waves of pressure which propagates through compressible media such as air or water. During their propagation, waves can be reflected, refracted, or attentuated by the medium. The purpose of this experiment is to examine what effect the characteristics of the medium have on sound. Ground Wave or … Read more