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Explain the Microscope?
Microscope is a powerful and crucial basic tool in the field of microbiology. Microbiology, as we have already studied in our theory Course, is the science dealing with the organisms too small to be seen with unaided eye. The existence of microbial life to the world was introduced first by Antony Van Leeuwenhoek in 1673, with the help of simple, crude, self-made, single-lens microscope having a magnification of about 300.
Over the years, microscopes have evolved to increase the magnification several thousand fold. Modern day microscopes are either light microscopes or electron microscopes. Light microscopes use either visible light or ultraviolet rays to illuminate specimens. These are generally used to look at intact cells. On the other hand, electron microscopes use electron beams instead of light rays and electromagnets instead of lenses. These are generally used to look at internal structures or details of cell surface.
Endocrine glands Endocrine glands have no ducts - so these are also called as ductless glands Eg.Pituitary etc., These glands secrete chemical substances called HORMONES
What is Erythropoietin (EPO) A. is secreted by peritubular interstitial cells of the kidney cortex. B. acts by increasing the production of red blood cells by cells in
Wastes are classified into following categories: 1. Biodegradable wastes: The waste materials that can be degraded by micro-organisms are called biodegradable wastes. Th
LIF E AS AN EXPRESSION OF ENERGY CHANGES - Energy is explained as capacity of body to do work. Energy may be as potential (stored) or kinetic (expended) energy. It ex
Is the stage when an insect larva is within a cocoon a stage of total biological inactivity? The period when the larva is inside its cocoon is a time of intense biological acti
Estimation of Burn Area: The estimation of the extent of burn area expressed as the percentage of the surface area of the skin burnt to the total body surface
Define Sugars - Chemistry and Functionality? In this section we will learn about the simple carbohydrates called sugars. As you may already know, those carbohydrates that canno
Estimate the Results of Tetralogy of Fallot? In excellent centres, the mortality is reported one per cent or less. In infants and babies with low weight, higher mortality is ex
What is the main difference between a bird heart and a mammalian heart? The bird heart has a one aortic arch on the right side of its body while the mammalian heart has one on
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