If water were a nonpolar molecule, how would its properties be different?
a. water would be able to climb up inside plants.
b. water would be a much heavier molecule.
c. water would form hydrogen bonds.
d. water would not stick together as well.

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.