Antibodies are composed of two heavy chains and two light chains, forming a Y-shaped structure that allows for antigen binding.
What is the structure of an antibody?
Practice Questions
Q1
What is the structure of an antibody?
Single polypeptide chain
Two heavy and two light chains
Three heavy chains
Four light chains
Questions & Step-by-Step Solutions
What is the structure of an antibody?
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.
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