Answer the following question. Show the answers here. After uploading your exam, take the pictures of your work and upload them to Exam 1 Solutions, Extra Credit, and Partial Credit assignment. Your work must reflect the answer provided here. Calculate the free energy change in J/mole*K  of the following reaction.   PbO2(s)   + 2 CO(g)  => Pb(s)  + 2CO2(g)          PbO2(s)   CO(g) Pb(s)  CO2(g) ΔGo,kJ/mole    -217.3  -137.2 0.0  -394.4

Removal of calcium causes relaxation.

What event served as a catalysis for World War I?

Extra cytosolic Ca++ causes:

Pulmonary veins carry deoxygenated blood.

Pressure gradient determines direction of blood flow.

Purkinje fibers cause:

Ca++ entering the cell (influx) causes rapid depolarization in pacemaker cells.

A vessel that carries blood away from the heart is a:

In cardiac muscle, extra Ca++ makes contraction weaker.