Your muscles are switched on by releasing calcium ion from the sarcoplasmic reticulum that surrounds your muscle bundles. The Ca2+ binds to a muscle ﬁber, and that triggers the contraction. To relax the muscle again, Ca2+ must be pumped out, so that the concentration in the muscle returns to 10-6 M, and the concentration in th reticulum is 10-3 M. How much work is required per mole to move calcium ions

Question

Your muscles are	 switched on	by releasing calcium	ion	from the	sarcoplasmic reticulum	that	surrounds your muscle bundles. The Ca2+	 binds to	a muscle ﬁber, and that triggers the contraction. To relax the muscle again, Ca2+ must be pumped out, so that the	concentration in the muscle returns to 10-6 M, and the	concentration in th reticulum is	 10-3 M.	 How	much work is required per	mole to move calcium ions	
up	this	concentraBon	gradient?		(Hint:	body	temp	is	37°C)