1. The content of protein in the cell: The content is only less than water and accounts for more than 50% of the dry weight of the cell. The substance with the largest dry weight content in the cell is () A Water B Protein C Lipid D Nucleic acid Example 1 Hemoglobin is not included The chemical element is () A. CB. NC. Mg D. Fe 2. The molecular formula is (C6H10O5) n and C3032H4816O872N780S8Fe4. The two substances are most likely to be () A, lipids and protein B, polysaccharide and protein C, nucleic acid and polysaccharide D, protein egg and nucleic acid
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