Which of the following classes of macromolecules always contains a carbohydrate portion? view available hint(s) which of the following classes of macromolecules always contains a carbohydrate portion? nucleic acids water proteins lipids submit

Nucleic acids

Explanation:

Remember these long strands could be the ADN or the RNA, in both cases, they are formed by nucleotids, that means a complex of three parts.

A nucleotid is conformed by:

a) a nitrogenous base that in the case of DNA could be Adenine (A), Guanine (G) , citocine (C) o thymine (T). In the case of ARN are almost the same, the difference is instead of having Thymine, it will have uracile (U).

b) a phosphate group

c) a carbohydrate, in the case of ADN it will be Dexosyrribose and in the case of ARN will be ribose sugar.

i would say it is

d. planting trees

the trees take in carbon to make oxygen.