Biology Booster

 There are many types of heart disease that affect different parts of the organ and occur in different ways. Congenital heart disease   This is a general term for some deformities of the heart that have been present since birth. Examples include:   Septal defects: There is a hole between the two chambers of … Read more

 Circulatory System The circulatory system can be compared to a system of interconnected, one-way roads that range from superhighways to back alleys. Like a network of roads, the job of the circulatory system is to allow the transport of materials from one place to another. As described in Figure below, the materials carried … Read more

 Abderhalden-Kaufmann-Lignac syndrome Autosomal recessive syndrome of disturbance of amino acid transport characterized by deposition of cystine crystals in numerous tissues of the body, particularly evident in the conjunctiva and cornea. Children in whom cystinosis is found are subnormal in development, with dwarfing, rickets, and osteoporosis. Renal tubular disease, aminoaciduria, glycosuria, and hypokalemia are usually … Read more

 Complete information on major types of epidemics in India India is endemic to many diseases such as Malaria, Kala-azar, Cholera, Tuberculosis. These erupt in epidemic form when conditions are favorable for their spread. Epidemics are disasters by themselves but these can emerge in the aftermath of other disasters as well. In the recent past, … Read more

   Transport of water in plants The survival of plants is dependent on a number of factors which include water, minerals, gases, and nutrients they receive. The movement of gas, water, and nutrients in plants are carried out in components. They take in carbon dioxide from the air through the stomata present in their … Read more

 Introduction If you exercise on a hot day, you are likely to lose a lot of water in sweat. Then, for the next several hours, you may notice that you do not pass urine as often as normal and that your urine is darker than usual. Do you know why this happens? Your body … Read more

 :In plants , the process by which animals and plants rid themselves of waste products and of the nitrogenous by-products of metabolism. Through excretion organisms control osmotic pressure—the balance between inorganic ions and water—and maintain acid-base balance. The process thus promotes homeostasis, the constancy of the organism’s internal environment. Plants have no special organs … Read more

 Tuberculosis Programme TB was declared as a global health emergency in 1993. In the same year, India established the RNTCP as a small pilot project. This project was scaled up nationwide between 1998–2006. The overall vision of RNTCP is “A TB free India”—a situation in which TB is no longer a major public health … Read more

 In the body of an animal two types of activities take place: voluntary and involuntary. Voluntary action happens according to the will of the individual while there is not any control of will over involuntary action. Involuntary action may again be divided into two categories. The action of first category is related to internal … Read more

 External Respiration One method for obtaining oxygen from the environment is through external respiration or breathing. In animal organisms, the process of external respiration is performed in a number of different ways. Animals that lack specialized organs for respiration rely on diffusion across external tissue surfaces to obtain oxygen. Others either have organs specialized … Read more