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Define about the Photometry - colorimetry?
Photometry is the measurement of the luminous intensity light or the amount of luminous light falling on a surface from such a source. The term photometric measurement was defined originally as the process used to measure light intensity independent of wavelength. Modern instruments, however, isolate a narrow wavelength range of the spectrum for measurements.
The instruments that use filters for this purpose are referred to as filter photometers, whereas, those that use prisms or gratings are called spectrophotometers. A simple spectrophotometer called a colorimeter is used to measure the amount of light a sample absorbs. The primary analytical utility of filter photometry or spectrophotometry is the isolation and use of discrete portions of the spectrum for purposes of measurement.
Valve Thrombosis : Valve thrombosis causes sudden deterioration of the patient's haemodyarnics. A stuck valve may produce both stenosis and incompetence. If diagnosed early s
Q. What is population density? The Population density is the relation between the number of individuals of a population and the area or volume they occupy. For instance, in 200
HIS T O R Y - Protoplasm was first seen by Corti, 1772 F . Dujardin called it "Sarcode" & observed it in animal cell Term "Protoplasm" was given by J.E. Pu
Define Criteria for Assessment of Vitamin D Status? You may recall the events involved in calcium homeostasis described earlier in this section. We studied that sufficient 25-O
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VI T AMINS Made up of protein or fat. Vitamins required in minute quantity for normal metabolism and body functions. Vitamins are supposed to be vital amines
are viruses cellular organisms
Q. How does the pancreatic juice participate in the digestion of proteins? What are the involved enzymes? The pancreas secretes trypsinogen that undergoing action of the enzyme
is crossing over of chromosomes is a method?
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