Bacteria structure with Diagram and Functions

Bacteria structure

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

Uses of Glass and its Applications to Man

uses of glass for storing pickles

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

Transportation in plants for Water and Food Supply

Transportation in plants

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

Applications of Gas Chromatography | 5 Major Uses

applications of gas chromatography

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

What system removes waste from the body and How

What system removes waste from the body

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

Factors affecting transpiration | Both Internal and External

Factors affecting transpiration

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

Fluorimetry | Principle, Instrumentation and Applications

Fluorescence spectroscopy

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
1 2 3 39