<prompt> Which of the following membranes has the highest protein content per gram tissueMyelin sheathOuter mitochondrial MembraneSarcoplasmic ReticulumInner Mitochondrial membrane  <response>: The membrane with the highest protein content is inner mitochondria The membrane with highest lipid content is myelin sheath Protein to Lipid ratio in Different Membranes Membranes Protein:Lipid Ratio Myelin 0.23 Human RBC 1.1 Mitochondrial outer membrane 1.1 Sarcoplasmic reticulum 2.0 Mitochondrial inner membrane 3.2 Ref: Harpers illustrated Biochemistry 31st edition Pgno: 1124 