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Acetylcholine, a well known neurotransmitter, plays a critical synaptic role in the initial formation of memory. Chemical blockage of the acetylcholine receptors makes it harder to learn and remember even in healthy young people. Evidence for it comes from pharmacological studies conducted on human subjects wherein blockage of muscarinic cholinergic receptors by drugs such as scopolamine impaired the encoding of new memories. Conversely, drugs which activated nicotinic receptors enhanced the encoding of new information.
Similarly administration of scopolamine into the hippocampus impaired encoding of spatial memory. It has also been found that administration of drug that increases the level of acetylcholine in Alzheimer's disease (characterised of memory problems) improves memory by inhibiting the action of acetyl cholinesterase, an enzyme that breaks down acetylcholine and reduces its amount. Overall it can be said that decreased acetylcholine in the brain cause problems with memory function.
MITOCHONDRIA It is the power house of the cell because they are the major centers of release of energy in the aerobic respiration. Mitochondria and chloroplast both are a
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Q. For the enzymatic reaction what is the effect of a substance with the same spatial conformation like an enzymatic substrate? How is this kind of substance known? Substances
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Explain Pancreatitis Pancreatitis :- Inflammation of the pancreas.
Define the terms umbra and penumbra, and describe how they relate to solar eclipses.
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Ask quesWhat type of antigenic agents may constitute vaccines? tion #Minimum 100 words accepted#
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