Proteins are made of A. Sugar B. Fatty acid C. Nucleic acid D. Amino acid 💾 Save the Page as PDF: 📥𝐃𝐨𝐰𝐧𝐥𝐨𝐚𝐝 𝐍𝐨𝐰! Related Read more articles Previous PostThe unit of energy produced by food in the human body is called Next PostAmount of water in mammalian blood is If the aforementioned Answer is Wrong. Leave a Reply with an authentic source.Cancel reply