The cell membranes consist of

Explanation

The question is asking about what makes up the cell membranes. Cell membranes are important structures that surround and protect cells. They are made up of two main components - lipids and proteins. Lipids are a type of fat molecule that make up the majority of the cell membrane. Proteins are also an important component of the cell membrane and help to regulate what goes in and out of the cell. Option A, carbohydrates and lipids, is not correct because while carbohydrates may be present on the surface of the membrane, they are not a major component of the membrane itself. Option B, vitamins and proteins, is not correct because while proteins are an important component of the membrane, vitamins are not. Option C, lipids and proteins, is the correct answer. As mentioned earlier, lipids and proteins are the two main components of the cell membrane. Option D, water and sugar, is not correct because while water is present in the cell membrane, it is not a major component. Sugar is also not a major component of the cell membrane. Option E, starch cellulose, is not correct because while cellulose is a major component of plant cell walls, it is not a major component of the cell membrane. In summary, the cell membrane is made up of lipids and proteins. These two components work together to create a protective barrier around the cell that helps regulate what goes in and out of the cell.