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Q. How does synaptic transmission between neurons take place?
The propagation of the action potential along the axon reaches the region immediately anterior to the presynaptic membrane causing its permeability to calcium ions to change and these ions to enter the cell in the presynaptic area of the axon there are many neurotransmitter-repleted vesicles that by means of exocytosis activated by the calcium influx release the neurotransmitters into the synaptic cleft. The neurotransmitters then bind to specific receptors of the postsynaptic membrane the binding of neurotransmitters to their receptors is reversible that is the neurotransmitters are not consumed after the process. With the binding of neurotransmitters to the postsynaptic receptors the permeability of the postsynaptic membrane is depolarization and the altered that will lead to the first action potential of the postsynaptic cell begins.
Define Erythropoietin A. acts by stimulating the production of red blood cells by the peritubular interstitial cells of the kidney cortex. B. is secreted by cells in the bon
Q. What is the ecological role of earthworms? Earthworms have an important ecological role as they eat decomposing organic material. They also dig tunnels in the subsoil allowi
What is Lysosomes? Lysosomes : Animal and fungal cells contain membrane-bound organelles called lysosomes, which are filled with digestive enzymes. These digestive enzyme
It is defined as the amount of heat liberated when one unit mass of fuel is burnt and the products of combustion are allowed to escape. LCV = HC
Glucose is a six-carbon single sugar; It is the most common energy source.
Question 1 List various liver function tests. Discuss the importance of each test. Add a note on standardization of various liver function tests Question 2 Discuss the follow
Which of the following best explains what would happen if recombination (crossing-over) happens during mitotic prophase? A. Recombination during mitosis will lead to segregatio
A person with a cough takes a patent cough syrup. In three days, the cough is better. Does this mean that the syrup has cured the cough? Justify your answer. There is insuffic
Explain the Role of Lipoprotein ? As discussed in the previous section, serum concentrations of Lp(a) are elevated in South Asians irrespective of their migrant status. Several
Functions of Ovary The ovary of vertebrates performs the following functions: Production of eggs, Synthesis of hormones needed for the chemical coordination of repr
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