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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.
Slow creeping
Apical Ectodermal Ridge (AER) We have described earlier that the AER persists at the tip until the last phalangeal cartilage begins differentiation. The following experiments
Explain about the Nutritional Requirements? Nutritional requirements are defined as 'intake levels of nutrients that meet specified criteria of adequacy such as normal growth,
classification
Q. What structure of the eye produces tears? Lachrymal gland, which is a part of larger lachrymal apparatus, produces tears that flow over anterior surface of the eye. Most of
What is Flap tearing Poor preoperative surgical planning can result in flap of small size with inadequate exposure of the underlying bone. In an effort to increase the visibili
CELL MEMBRANE It is biological, thin, elastic, flexible & selective permeable membrane. Term "Cell membrane" was coined by Negeli & Crammer 1855. Term " Plasma membr
Define the Bioavailability of Vitamins? The term bio availability refers to the overall efficiency of utilization, including physiological and biochemical processes involved in
How does phosphocreatine act in the muscle contraction and relaxation? Phosphocreatine is the main means of energy storage of the muscle cells. During relaxed periods ATP mo
Characteristic Features of Avian Gastrulation Creation of hypoblast and its important role in formation of the axis and orientation of embryo. Existence of the cells
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