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Determine about the microtubules
The microtubules are hollow tubular structures formed by a special arrangement of two proteins called the alpha and beta tubulins. The microtubules play a leading role during cell division. At that time the chromosomes attached to the mitotic spindle, composed of microtubular fibres, move apart due to contractions of the microtubule proteins. The motility of eukaryotic cells, the movement of flagella and cilia, the movement of the microvilli of the intestinal brush border cells, are all associated with microtubules. The movement of leukocytes in the blood stream and the transport of molecules along the axonal fibres are also due to contractions of the proteins constituting the microtubules. The cytoskeleton is, thus, an important structured feature of the cell, which is essential for the various kinds of movements associated with the cell and its internal structures. This is achieved by the special proteins that constitute the cytoskeleton, by a process of polymerisation and depolymerisation, resulting in changes in shape and thus resulting in movement.
Long Distance Transport Once in the xylem vessels, the transport of the mineral elements from the root to the shoot is driven by the gradient of hydrostatic pressure (root pre
State the term in detail hydrostatic skeleton. Formed from a fluid-filled and closed cavity surrounded by a body wall comprising muscles oriented in different directions. Muscu
Axon: Axon is a projection from the cell body. Each neuron has only one axon. Unlike dendrites, axons are very long and are usually unbranched structures. The axon
what are the general methods for studying microbial physiology
#applications of biotechnology..
Describe the Developmental Periods of coronary artery diseases? The development of coronary artery disease like many other diseases can be divided into the following periods:
Q. How many carbon dioxide (CO 2 ) molecules are liberated after each cycle of the Krebs cycle? For a single glucose how many carbon dioxide molecules were already liberated by the
Though it has bees suggested that Doppler echocardiography may be useful for non-invasive determinations of stroke volume and cardiac output, it should be recognized that th4re
History Past and present history of cardiovascular problems of patient & family. History of chest pain, shortness of breath, fatigue, abnormal skin colour, dizziness, vertigo
Lens Regeneration in Amphibians It is an amazing fact that between all vertebrates only certain amphibians have the unique ability to regenerate lens, iris and retina in adul
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