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Galvanotaxis - Modes of Cell Movement
Galvanotaxis considers to the movement of cells in response to a potential variation between cells. It is suggested that there are voltage differences among embryonic regions that could play an important role in morphogenesis. Minute electric fields of the order of 10 to 100 mv/mm appear to be enough to alter the direction of nerve growth. Nuccitelli and Erickson (1984) displayed that embryonic chick fibroblasts migrate toward negative pole when cultured in small steady electrical field. Early chick embryos, regenerating blastema of amphibians and moth ovaries while transportation of yolk proteins occurs, arc some of the structures where large electric currents have been detected.
The heart is supplied exclusively by the right and left coronary arteries. The coronary arteries are functional end arteries. There is no effective anastamosis between right and le
What are the Sources of Vitamin K? As mentioned above, in plants, the only important molecular 'form of vitamin K is phylloquinone. Phylloquinone is distributed ubiquitously th
compare and contrast the structure of the following: hyrda plain, hydra mematocysts, obelia, amoeba, euglena, paramecium caudatum conjugation, euglena acus.
Describe the types of Drugs • Induction agent (thiopentone, fentanyl, ketamine, midazolam) • Suxamethonium (1-2 mg/kg) is the muscle relaxant of choice. Rapid sequence ind
Define Carbohydrate requirement to avoid underweight problem? Liberal amounts of easy to digest carbohydrates should be included in the diet. The intake of dietary fibre should
Q. What is the prothallus of pteridophytes? The gametophyte develops by mitosis from a spore and Prothallus is the pteridophyte gametophyte (the haploid individual that forms g
What are the two divisions of the autonomic nervous system? The autonomic nervous system is separated into the sympathetic nervous system and the parasympathetic nervous system
Minerals :- Aluminium Food Source Low and variable in foods, component of some antacids and leavening agents Nutritional Functional role Possib
The excretory organs and excretory materials of plants and animals
Other agro-industrial byproducts Supply of nutrients in the livestock ration can be maintained by using the locally available industrial byproducts, which in spite of having h
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