Step 1: Understand that antibodies are proteins made by the immune system.
Step 2: Know that antibodies have a specific shape that helps them recognize and bind to foreign substances called antigens.
Step 3: Learn that an antibody is made up of four protein chains: two heavy chains and two light chains.
Step 4: Visualize the shape of an antibody as a 'Y'. The two heavy chains form the main body of the 'Y', and the two light chains are attached to the ends of the 'Y'.
Step 5: Recognize that the tips of the 'Y' are the parts that bind to antigens, allowing the antibody to identify and neutralize them.
