Describe how giving a vaccine leads to production of antibodies against a virus

A vaccine is a weakened or dead form of a virus that contains the antigen of that virus.

An antigen is a protein on the surface of the virus that allows the body to identify it.

Specific T helper cells from the body's immune system detect the antigen and, because of this, stimulates specific cells in the body known as B cells.

These B cells divide through a process called mitosis to form a genetically identical duaghter cells known as a plasma cells.

This plasma cell produces antibodies spefically against this virus.

OT

Related Biology A Level answers

All answers ▸

Describe the structure of muscle and how it contracts


Explain how during the light independent reaction of photosynthesis carbon dioxide is converted to organic substances.


Explain the lock and key enzyme hypothesis


Describe three differences between a motor neurone and a sensory neurone.