The extra step of dissolving the nucleus is needed during DNA replication in a eukaryotic cell, whereas bacteria are prokaryotic and therefore don't have a nucleus so they don't need this extra step.
The following diagram shows how the moon causes tides on Earth: In this diagram, you can see that the moon's gravitational force pulls on water in the oceans so that there are "bulges" in the ocean on both sides of the planet. The moon pulls water toward it, and this causes the bulge toward the moon.
Assuming it is plain water and had normal air pressure it would stay 100 degrees Celsius having reached its latent heat of vapouristaion the extra energy added into the water in that 10min would go into turning the water into steam. Simplified: it would stay at the same temp
