What's the difference between an antigen and an antibody?
An antigen is a substance that is introduced to the body and stimulates an immune response and the production of antibodies. Antibodies are proteins produced by cells in the body in in repsonse to the presence of a specific antigen. The antibody can then bind to the specific antigen, neutralise it, inhibit its action, or destroy it.
SP
Related Biology A Level answers
All answers ▸Define homeostasis and explain it in the context of blood glucose concentration.
DNA helicase is important in DNA replication - explain why.
Starting with mRNa in the cytoplasm, describe how translation leads to the production of a polypeptide ( without including transcription or slicing)
Explain how a fish is adapted for gas exchange?