Which statement is true of amino acids as polar amino acids?
a. They are all negatively charged.
b. They are all positively charged.
c. The R groups have atoms with partial positive or partial negative charges.
d. These amino acids cluster away from the aqueous environment.
This is because The polar group consist of 10 amino acids, two are negatively charged that is aspartic acid and glutamic acid, 3 have a positive charge - arginine, lysine and histidine, and 5 are uncharged
