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What is Intercellular Communication explain briefly?
Both plant and animal cells have developed means of communication between cells. In animals, specialized areas of the cell membrane called gap junctions are sites of transfer of material between cells. Tight junctions close off intracellular spaces by gluing together ajoining cells so as to not allow material to pass between them. Desmosomes are very strong junctions associated with cytoplasmic structural filaments, present in skin and other tissues subject to mechanical stress. Desomosomes are thought to have a supportive role.
Plant cell walls have pores called plasmodesmata that allow fusion of the plasma membranes of two adjoining cells.
What is osteoblast The osteoblast is the key for the development of new bone. It is essential that a large number of osteoblasts accumulate on the implant surface(contact osteo
Gluconeogenesis synthesizes glucose from noncarbohydrate precursors, involving pyruvate and lactate, citric acid cycle intermediates, the carbon skeletons of most glycerol and amin
Why Deficiency of Folate take place? If there is inadequate dietary folate, the activity of both the DNA and the methylation cycles, described above, will be reduced. A decrea
Q.Explain Chemical changes due to spoilage A food item may have apparently looked safe and wholesome for you to eat, but the rumbling and grumbling in your stomach at night may
Q. What are the Haversian canals and the Volkmann's canals of the bones? Is the osseous tissue vascularized? The Haversian canals are longitudinal canals present in the osseous
what can we do after reading biology???
A home-made wormery A wooden box 30 cm by 30 cm by 15 cm fitted with a glass front is beneficial for studying the habits of earth-worms. Fill the box nearly to the top with
What is meant by suction force of the plant cell? Does the suction force facilitate or make difficult the entrance of water in the cell? Ans) The suction force (SF) is the osmot
Once quite widespread throughout Asia and Africa, there has been a large reduction of the cheetah's habitat and numbers though it is still seen in widely separated areas of Africa.
What is the type of genetic inheritance that determines the ABO blood group system? What are the relations of dominance among the involved alleles? The inheritance of the ABO b
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