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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.
How much Carbohydrates taken for management of obesity? Carbohydrates in the form of non-starch poly-saccharides provide bulk and satiety value to the reducing diet. They are a
Q. How different are animal cells from plant cells? While plant cells are eukaryotic, photosynthetic, autotrophic and have chloroplasts and cell wall, the animal cells are hete
In an ecosystem various trophic levels are interlinked with each through a food chain. ( the transfer of food energy from green plants through a series of organism with repeated ea
Driving Force - Mineral Nutrition Let us now find out what is the driving force involved in protein mediated transport. Many membrane transport proteins allow specific solute
Major Criteria 1) Positive blood culture • Typical microorganism for infective endocarditis from two separate blood cultures Viridans streptococci, Streptococcus bovis, HAC
Describe Systolic Sounds in heart dieases? Early Systolic Sounds: Aortic or pulmonary ejection sounds are the most common early systolic sounds. These are high frequency soun
LOCOMOTION IN STAR FISH - With the help of tube feet aided by fluid pressure in them. In a tube feet upper ampulla, middle podium and lower sucker present.
When the Balance Sheet column totals don't agree on the first attempt work backward through the process used in preparing the work sheet exclusively take the following steps until
Domesticated animals provide much of the world's meat products today, but wildlife still constitutes to be an imp ortant source of food of many rural communities. The International
Pre-operative Teaching Brief explanation-anatomy, physiology of the cardio-respiratory system. The disease and the operation which is going to be done. Operati
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