579th Day of CUBE chatShaala: Butterfly

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Timing:5.30 pm to 9.30 pm

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Summary
Few important questions from yesterday’s discussion :-

:low_brightness:how are blue tiger butterfly catterpillar able to survive toxic molecule present in their host plant - calotropis ?

:low_brightness: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

:low_brightness:but what is sodium pump? Are they present in humans too ? Are they in neurons ?

:low_brightness: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 ?

:low_brightness:how does resting membrane potential helps in neuron signal transmission ?