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Regeneration - Root and Shoot Morphogenesis
Higher plants have three kinds of regenerative activities;
All plants possess inherent ability to regenerate lost parts. For example when a part of mature tissues are removed from stem, the exposed mature cells undergo differentiation, division and re-differentiation to restore the normal pattern. When a branch is cut and wound is made-damaged tissues are cast off and new cells take this place. A wound also results in the formation of a zone of cells that form a thick protective layer. Induction of hormones like auxins and cytokinins that promote cell division is also a reaction to wound and part and parcel of regeneration. Mobilization of nutrients towards the site of injury, synthesis of new hormones, increased cell division and thickening of cell walls etc. are some of the responses and contribute to regeneration.
Mechanics of Locomotion Among annelids, polychaetes, hence more primitive than the other two groups, show a more complex mode of locomotion. Necessarily, the locomotion in po
Treatment of Lyme Disease Lyme disease in North America is caused by the spirochete Borrelia burgdorferi, which is transmitted to humans by Ixodes scapularis or pacificus tick
what are the types of pyramids studied
Q. After digestion the next step is absorption done by cells of the mucous membrane of the intestine. For this task a large absorption surface is an advantage. How is it possible i
How is water's importance to life reflected in the normal range of internal pH values that living things are likely to have?
Which of the following is composed of ONLY glucose monomers? (mark all that apply) Select one or more: a. Starch b. glycogen c. Maltose d. chitin e. Cellulose
Determine the term - Leuconoid sponge. The most complex of the three different sponge architectures. Choanocytes are found in chambers, and there is not any spongocoel. Water e
Define the Armamentarium a) Micro-mirrors (magnification: x 40, Size: 0.5) b) Micro-probe c) Micro-blades, tissue retractors d) Burs e) Retrograde Tips "round bur
Define in brief about the Golgi bodies In a cell is achieved in a remarkable fashion by the Golgi bodies. The latter receive the newly synthesised proteins from the rough endop
Arteries - Circulation The arteries deliver blood from the heart. Figure shows the structure of arteries and the different layers of the vessel wall. The thick walls of these
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