Menactra Vaccine Immunogenicity. Five serogroups, A, B, C, Y and W-135 are responsible for almost all cases of invasive meningococcal disease worldwide.3. Menactra is the first meningococcal conjugate vaccine in the United States that helps protect against 4 vaccine-preventable serogroups (A, C, Y, and W-135).1,2,4.
The cytoplasm comprises cytosol (the gel-like substance enclosed within the cell membrane) â and the organelles â the cell 's internal sub-structures. All of the contents of the cells of prokaryote organisms (such as bacteria, which lack a cell nucleus) are contained within the cytoplasm.he cytoplasm comprises cytosol (the gel-like substance enclosed within the cell membrane) â and the organelles â the cell 's internal sub-structures. All of the contents of the cells of prokaryote organisms (such as bacteria, which lack a cell nucleus) are contained within the cytoplasm.
The fluid portion of the cell membrane is made of phospholipids. a. A phospholipid molecule is composed of a hydrophilic head and two hydrophobic tails.b.he fluid portion of the cell membrane is made of phospholipids. a. A phospholipid molecule is composed of a hydrophilic head and two hydrophobic tails. b.