Bo (dog) Bo (born October 9, 2008) is a pet dog of the Obama family, the former First Family of the United States. Bo is a neutered male Portuguese Water Dog. President Barack Obama and his family were given the dog as a gift after months of speculation about the breed and identity of their future pet. The final choice was made in part because Malia Obama's allergies dictated a need for a hypoallergenic breed.
How do plasma cells form, and how do they help fight pathogens. Answers. Plasma cells, they are also called plasma B cells, or effector B cells, are white blood cells that secrete large volumes of antibodies. They are transported by the blood plasma and the lymphatic system. Plasma cells originate in the bone marrow; B cells differentiate into plasma cells that produce antibody molecules closely modeled after the receptors of the precursor B cell.
Plasma contains proteins that help blood to clot, transport substances through the blood, and perform other functions. Blood plasma also contains glucose and other dissolved nutrients. About half of blood volume is composed of blood cells: â¢ Red blood cells, which carry oxygen to the tissues.