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Few important questions from yesterday’s discussion :-
how are blue tiger butterfly catterpillar able to survive toxic molecule present in their host plant - calotropis ?
are sodium ion channels / some enzyme/ protein having a change which are present in catterpillar and not in other organisms like bird which feed on it ?
Then this article was shared by arunan sir :- https://www.scientificamerican.com/article/how-monarch-butterflies-evolved-to-eat-a-poisonous-plant/
Which talks about mutation in sodium pump which prevents toxin to binding to it and thus this pump functions properly
but what is sodium pump? Are they present in humans too ? Are they in neurons ?
what is neuron? How does it transfers signals ? What is resting membrane potential ? Why is it -70mv ? Why are na +ions thrown outside the neuron by sodium potassium pump ?
how does resting membrane potential helps in neuron signal transmission ?