Some of the molecules found in animal tissues are grouped into three lists.

I. glucose, cholesterol, triglycerides, water
II. glycogen, antibodies, adenine, phospholipids
III. hemoglobin, carbon dioxide, mRNA, monosaccharides

Which lists include one or more molecules that always contain nitrogen atoms?

Question

TestHub · Accepted Answer

Haemoglobin and antibodies are made of proteins which contain nitrogen in their structure. mRNA is a nucleic acid which contains N-bases made of nitrogen base. Adenine is purine which is a part of N-bases of nucleic acids. It is a heterocyclic aromatic purine characterized by a two-ringed structure composed of carbon and nitrogen atoms.

Chemistry - Biomolecules Question with Solution | TestHub

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