MYTUTOR SUBJECT ANSWERS

567 views

What is the difference between the humoral and cell-mediated immune repsonses?

The humoral repsonse removes the pathogenic microorganisms which don't enter the cells and requires antibodies produced by B lymphocyctes. Different B lymphocyte cells produce different antibodies, each of which is complementary to (i.e. fits the shape of, like jigsaw pieces) a signle type of antigen (present on the surface of pathogens). The B lymphocyte cell is activated once its antibody has bound to an antigen and it replicates itself to produce many clones, all producing the same antibody. The large amount of antibodies can then target and lead to the break down of the pathogen. This repsonse pathway leads to the formation of memory cells.

The cell-mediated repsonse is required when the pathogenic microorganism has entered the body cells and does not require antobodies. Once the pathogen has entered the cells it is much harder to remove and so the infected cell has to be destroyed. This is done by macrophages engulfing the invading pathogen, and presenting its foreign antigen on its surface (this is why macrophages are called antigen presenting cells). T helper cells recognise the antigen and activate cytotoxic T cells (or T killer cells) which then kill the infected cell.  

Lily C. A Level Biology tutor, A Level Chemistry tutor, GCSE Maths tu...

1 year ago

Answered by Lily, an A Level Biology tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist

126 SUBJECT SPECIALISTS

£20 /hr

Jack R.

Degree: Medicine (Bachelors) - Manchester University

Subjects offered: Biology, .UKCAT.

Biology
.UKCAT.

“Hi there! About me: My name is Jack, and I am currently a medical student at the  University of Manchester, UK. I am from the Peak District, and love the great outdoors, from cycling to skiing and everything imbetween. I an enthusiast...”

£20 /hr

Michael J.

Degree: History (Bachelors) - University College London University

Subjects offered: Biology, History+ 1 more

Biology
History
.HAT.

“About Me: I am a History student at UCL. My interests in History are mainly modern, focusing on the Russia and the Cold War and more recently the history of political thought and tea. I also have a love of Science from my A-levels. I ...”

£20 /hr

Isabelle H.

Degree: Medicine (Graduate Entry) (Bachelors) - Nottingham University

Subjects offered: Biology, .UKCAT.+ 2 more

Biology
.UKCAT.
-Personal Statements-
-Medical School Preparation-

“About me- I'm a 2nd year graduate entry medical student at the University of Nottingham, having previously acheived a 1st class honours in BSc Medical sciences at the University of South Wales. I love science and medicine and am reall...”

MyTutor guarantee

About the author

Lily C.

Currently unavailable: no new students

Degree: Biochemistry (Bachelors) - Bristol University

Subjects offered: Biology, Maths+ 1 more

Biology
Maths
Chemistry

“Hi! I'm Lily, a Biochemistry undergraduate. I love Science and I am happy to tutor Biology and Chemistry A-level”

MyTutor guarantee

You may also like...

Posts by Lily

How is benzene nitrated?

What is the difference between the humoral and cell-mediated immune repsonses?

Other A Level Biology questions

What is sex linkage?

Explain the difference in the speed of conduction of an action potential along the length of a myelinated neurone and a non-myelinated neurone.

What are the differences between mitosis and meiosis?

During the light-independent reaction of photosynthesis, carbon dioxide is converted into organic substances. Describe how

View A Level Biology tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok