For Perfecto

Question 1
The bonding properties of water give it certain characteristics: surface tension, capillary action, universal solvent, high specific heat, and a high heat of vaporization. Indicate three reasons why you believe these properties are important to organisms that live underwater. In your own words, explain one of the following everyday phenomena in regard to the bonding properties of water, and propose one other everyday phenomenon that demonstrates the bonding properties of water:

• Why do you feel cool when you sweat?
• Why do paper towels (made of cellulose, another polar molecule) absorb water?
• How can a water strider walk on water?

Question 2

 A group working at the University of California, Berkeley has developed “nanothermometers,” little nanoparticles that can be injected into cells to measure the temperature in various places in the cell. So far, it has been used in cells growing in a culture dish.

• Indicate what you think the group will discover about the temperature in different parts of the cell. Discuss whether you believe it will be the same or different, and explain why.