Some of the saltiest sources of packaged foods include: 1  deli meat. 2  frozen pizza. 3  vegetable juices.  canned 1  soup. canned or bottled tomato products.
Antibodies show the following characteristics and perform different functions. (i) IgA: It is the second most abundant class, constituting about 10 to 15 per cent of antibodies of serum. It is mainly found in sweat, tears, saliva, mucus, colostrum (first milk secreted by a mother) and gastrointestinal secretions. Smaller quantities are present in blood and lymph.
Introduction. Antibodies are immune system-related proteins called immunoglobulins. Each antibody consists of four polypeptides two heavy chains and two light chains joined to form a Y shaped molecule. The amino acid sequence in the tips of the Y varies greatly among different antibodies. This variable region, composed of 110-130 amino acids, give the antibody its specificity for binding antigen. The variable region includes the ends of the light and heavy chains.