Limits test for chloride is a semi-quantitative analytical test. It is performed to identify the traces of chloride impurities which are likely to be present in a substance. The quantity of chloride impurity in an official substance is often small. So, the visible reaction response of any test for that substance is very small. The […]
Continue reading
Lipids are biomolecules and include many substances like fats, oils, waxes, vitamins like A, D, E and K. The importance of lipids can be listed based on the uses and role in life like Storage and Heat generation Hormones Signalling Hardness to hand palm and soles Smoothness to the skin Formation of cell organelles Helps […]
Continue reading
Bacteria structure is extremely small, microscopic and unicellular. They were discovered by Anton von Leeuwenhoek in the year 1676. Their size varies between 1 to 5 microns in length, but some of them are as big as 80 microns in length. Bacteria cell structure Bacteria is a prokaryotic cell. It is enveloped by three layers […]
Continue reading
The glass is one of the early discoveries of man. It was made out of molten sand. The uses of glass are indispensable, i.e., there will be no alternatives to it in some cases. Its applications to man include Kitchenware Eyeglasses and lenses Electronic Screens tv Microscopes for magnification Lights and bulbs Storage of specimens, […]
Continue reading
In humans and other animals, the transport of substances occurs due to circulatory system. In unicellular organisms, the transport within the cell occurs by cytoplasmic movements or by diffusion. But, transportation in plants is quite different. They have no circulatory system yet, the substances have to move to distant places. Water, plant growth regulators, minerals, […]
Continue reading
Gas chromatography is one of the widely used analytical tools. The applications of gas chromatography include Qualitative analysis Testing the purity of compounds To trace impurities Quantitative analysis Determination of a mixture of drugs Isolation and identification of metabolites Identification of compound mixtures. Qualitative analysis: Here the compounds in a given sample are identified. Qualitative […]
Continue reading
Kidneys are the vital organs which are involved in the excretion process. But there are also other organs which remove the waste from the body. These organs together constitute the excretory system as Kidneys Skin Lungs Liver Intestine All the above organs are involved in elimination. Elimination involves removal of waste from the body. Kidneys: […]
Continue reading
Transpiration is the loss of water from the plant surface into the atmosphere. The factors affecting the transpiration include Light Temperature Wind velocity Atmospheric humidity Atmospheric pressure Available water Leaf area Leaf structure Stomatal frequency Root-shoot ratio. Light: Light induces photosynthesis in guard cells leading to sugar synthesis. The osmotic potential increases and the guard […]
Continue reading
Transpiration is the movement of water from the plants into the air. But if you are asked to define what is transpiration, you can say it as “The loss of water in the form of vapor from the aerial parts of the plants into the atmosphere.” In spite of the loss of water by transpiration, […]
Continue reading
Fluorimetry is a type of spectroscopy which measures the emitted radiation from a substance. This radiation is one which is emitted by the substance when the electrons transit from excited state to ground state. The principle of fluorescence spectroscopy: In UV-Visible spectroscopy, the excitation wavelength is measured. But, here the emission wavelength is measured. When […]
Continue reading