How does phagocytosis occur in macrophages?

A macrophage attaches to a pathogen by the receptors on the pathogen and macrophage binding. The pathogen is then engulfed and a phagosome forms, where a vesicle surrounds the pathogen. A lysosome moves towards this and fuses with the phagosome so forming a phagolysosome, where enzymes such as lysins digest the pathogen into amino acids. Part of the pathogen is moved to a receptor on the macrophage called the MHCII, and is 'presented' on this, hence the macrophage becomes an antigen presenting cell.

Answered by Hamza M. Biology tutor

1234 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What are the different types of transport across a membrane?


How do alveoli create a surface for efficient gas exchange?


What are phagocytes and how do they protect the body?


What happens to the filtrate in the loop of Henle?


We're here to help

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

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy