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Deciduous Senescence - Senescence
Only the leaves senesce as in many trees. The senescence of leaves, or abscission occurs when at the base of a leaf a layer of cells is laid which is called abscission layer. The cells of this layer have high activity of cellulase, an enzyme which degrades cellulose of cell wall. Another enzyme that increases during abscission is polygalacturonase which hydrolyses pectin, a major component of the middle lamella region of the wall. So the cells get separated and the leaves fall. Below this layer, the plant makes a protective layer which has lot of lignified cells. When leaf falls, this layer protects the tissue from desiccation.
Q. What is Etiopathology? Who is likely to develop gout? What are the risk factors? Let us find out. Gout is caused when there is over production of uric acid in normal purine
Bubble Oxygenators: These have a mixing chamber where venous blood is collected and from the bottom end micro bubbles of oxygen are passed and as they rise to the top, gas ex
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Properties Gum Arabic is unique between the natural hydrocolloids because of its extremely high solubility in water and can yield solutions of up to 55% concentrations. Solutio
What would be the approximate number of amino acids of a protein with a mass of 203 kd? Assume an average molecular weight for amino acids of 110 grams/mol.
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Define Essential Parts of Photocolorimeter - Light Source? The light source is usually a tungsten lamp, for wavelength in the visible range (320-700 nm) and a deuterium or hydr
Q. What are the epithelial tissues? What is their general function and how is that function associated to the features of the tissue? Epithelial tissues also called as epitheli
Explain the Torsional Failure - Root Canal Test a. Occurs when the tip of the rotating instrument blinds (locked) in the canal while the motor continues to rotate the shank of
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