Mass percent = % (m/m) = (grams of solute/grams of solution) x 100. Solution, not solvent so you need to add them. % (15 g / 15 g + 235 g) x 100 = 6.0% Na2CO3. An IV solution is prepared by dissolving 25 g glucose (C6H12O6) in water to make 500 mL solution.
âActivated B cells differentiate into either antibody generating factories called plasma cells that secrete soluble antibody, or into memory cells that survive in the body for years afterwards to allow the immune system to remember an antigen and respond faster upon future exposures.â ~ Wikipedia...
The inner cortex contains mostly T-cells. The deep cortical, and medullary cords contain B-cells and plasma cells.Plasma cells live for 3 days, and make IgG type antibodies. This diagram of a lymph node shows the pathways that lymphocytes can take, in and out of the lymph node.