All of the following are examples of functional groups in biology except:
a) -CH₃.
b) -COOH.
c) -H₂O.
d) -NH₂.
e) -OH.

Of the following functional groups, which is/are polar, tending to make organic compounds hydrophilic?a.carbonylb. aminoc. hydroxyld. all of the above

Which action could produce a carbonyl group?a. the replacement of the —OH of a carboxyl group with hydrogenb. the addition of a thiol to a hydroxylc. the addition of a hydroxyl to a phosphated. the replacement of the nitrogen of an amine with oxygen

Circle and name the functional groups in this organic molecule. What type of compound is this? For which class of macromolecules is it a monomer?

Which of the following functional groups is present in all amino acids?

Which of these is found in all amino acids?

Ethanol, propanol, and methanol are three simple alcohols. They can be grouped together because they __________.

Which of the following molecules has a carboxyl functional group?