A patient is infected by a pathogen. Explain the process of the imitation of the immune response (5 marks) The paitent was prescribed antibiotics yet their symptoms did not improve. What can you infer from this? (1 mark)?

5 of the following...
Pathogen has antigens on its surface that are recognised as foreign by the immune system
T helper cells stimulate cytotoxic T cells, B cells and phagocytes (or lysosomes)
B cells produce antibodies complementary to the antigen
Antigen presenting cells present antigens from the pathogen on their surface.
T cytotoxic cells kill/destroy antigen presenting cells displaying the antigen-antibody complex.
Antigen-antibody complex leads to the destruction of the pathogen (not antigen)
Via agglutination and 
Phagocytosis of pathogen from lysozymes.
Memory cells are produced for a future secondary immune response.
//////
That the pathogen was a virus and not a bacteria.

Answered by Harriett F. Biology tutor

1961 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Which of these DNA mutations is likely to have the greatest effect on the structure of the encoded protein? Justify your answer. •Single base substitution •15 bases base deletion •Insertion of 2 bases


Describe how an endotherm prevents its body temperature from rising when external temperatures increase?


What is the difference between a prokaryotic cell and a eukaryotic cell?


Over-watering a plant can result in the soil around a plant's roots becoming saturated with water, reducing the amount of oxygen available to the roots. Using your knowledge of aerobic and anaerobic respiration, explain how over-watering can kill a plant.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences