Study the image.

which description best describes the parts of the molecule?

set a

a is the nonpolar, hydrophobic end.

b is the polar, hydrophilic end.

set b

a is the polar, hydrophilic end.

b is the nonpolar, hydrophobic end.

set c

a is the nonpolar, hydrophilic end.

b is the polar, hydrophobic end.

set d

a is the polar, hydrophobic end.

b is the nonpolar, hydrophilic end.

what set is the correct answer?

will give

The answer is; SET B

Polar molecules interact well with water because there are charged. Water molecules are partially charged (the oxygen end is partially negative while the hydrogen end is partially positive). Therefore polar molecules can interact stably with charged molecules. The hydrophobic end is non-polar and is ‘water-hating’. When mixed with water, the non-polar region clumps up  into globules so they don’t interact with water.

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.