What is the likely identity of these membrane-associated proteins: (a) a protein that is released from a membrane treated with a high-salt solution, which causes disruption of ionic linkages; (b) a protein that is not released from the membrane upon its exposure to a high-salt solution alone, but is released when the membrane is incubated with an enzyme that cleaves phosphate-glycerol bonds and covalent linkages are disrupted; (c) a protein that is not released from the membrane upon exposure to a high-salt solution, but is released after the addition of the detergent sodium dodecylsulfate (SDS). Will the activity of the protein released in part (c) be preserved following its release?

Step by Step Solution: Step 1. First, we should understand the methods used to release proteins from the membrane. Step 2. For part (a), a high-salt solution is used to disrupt ionic linkages and release the protein from the membrane. Step 3. For part (b), the membrane is treated with an enzyme that cleaves phosphate-glycerol bonds to release the protein. Step 4. For part (c), the membrane is exposed to the detergent SDS, which causes the release of the protein. Step 5. The likely identity of the proteins in parts (a), (b), and (c) are integral membrane proteins, lipoproteins, and peripheral membrane proteins, respectively. Step 6. The activity of the protein released in part (c) may or may not be preserved, depending on the protein's characteristics and structure.