Biology RESPIRATION -Important Points -One Liners For Exams 1- The microscopic air sacs present in lungs are called alveoli 2- We will find vocal cards in larynx 3- Lungs are protected by two layers called pleura 4- No of lobes present in the left lung of man are two and in the right lung three … Read more
BIOLOGY Plants with Seeds – Gymnosperms and Angiosperms * Plants with well differentiated reproductive tissues that ultimately make seeds are called phanerogams. Gymnosperms * This term Gymnosperms is made from two greek words: gymno– means naked and sperma– means seed. * The plants of this group bear naked seeds [ovules are not enclosed by any … Read more
Biology Study of Micro-Organisms ..continued 1-Pasteurization or pasteurisation is a process that kills microbes (mainly bacteria) in food and drink, such as milk, juice, canned food, and others. It was invented by French scientist Louis Pasteur . 2- In this Pasteurization method , the milk is heated upto 70 degree centigrade for 15 to 30 … Read more
Biology Study of Micro-Organisms-2 1-Micro-organisms are to be found in air, soil, water, within thebodies of plants and animals. 2-Microbes are useful in home, industry, cleaning the environment. 3-Soil microbes degrade organic wastes into useful nutrients.This helps plans in their growth and development. 4-Some micro-organisms cause diseases … Read more
Biology Study of Micro-organisms 1-Microbiology as a science was born in 1674 when Antyonh Van Leewenhoek peered at a drop of lake water through a glass lens that he had carefully ground. 2-Antyonh Van Leewenhoek built a single lens powerful microscope, which could magnify the … Read more
Biology Production and management of food from Animals 1-Animal Husbandry -Providing food, shelter and protection of cattle to get milk, meat and other purposes collectively called as animal husbandry. 2-Livestock -It is a method of domestication through which man gets benefitted. 3-Jersy -It is a hybrid england variety of cow.They give 25 litres … Read more
Biology Production and management of food from plants(Continued) 1-Selection -The process of selecting desirable plants or seeds for future use is called selection. 2-Seed crisis -Lack of sufficient seeds for the future generation is called seed crisis. 3-Sprouting -The process of germination of seeds is known as sprouting or the process of production of new … Read more
Biology Production and management of food from plants 1-The plants which are grown in large number to get useful products are known as crops. 2-The process of yielding crops is called Agriculture. 3-Winter season crops are called Rabi. 4-Summer season crops are called Kharif. 5-Rice is the prime, most essential … Read more
Biology Antibiotics * The medicines that kill or stop the growth of the disease-causing microorganisms. Such medicines are called ANTIBIOTICS. * A number of antibiotics are being produced from bacteria and fungi. Streptomycin, tetracycline and erythromycin are some of the commonly known antibiotics which are made from fungi and bacteria. * In 1929, Alexander Fleming … Read more
Insectivorous Plants 1- These plants are specialized in trapping insects and are popularly known as insectivorous plants 2-The insectivorous plants often have several attractions such as brilliant colors, sweet secretions and other curios to lure their innocent victims. 3-Insectivorous plants can broadly be divided into active and passive types based on their method of trapping … Read more