MYTUTOR SUBJECT ANSWERS

157 views

How can immunity be acquired?

Firstly we can define immunity as when an individual is no longer affected by a certain pathogen as no symptoms of infection appear when the body is invaded by the pathogen. 

Immunity comes from the presence of memory cells in the blood which can detect and react to the presence of a specific antigen to give a much quicker and more vigorous immune response than first exposure. Therefore a large number of antibodies are produced which prevent symptoms from appearing. 

A person can gain memory cells via active immunity as a small number of beta cells differentiate into memory cells after the initial exposure to a pathogen. 

Passive immunity can be gained by acquiring antibodies from other organisms, an example of this is acquiring maternal antibodies via the placenta during pregnancy. 

Immunity can be given by vaccination with exposes individuals to a weakened form of the pathogen to stimulate an immune response that results in memory cells being produced.

Hamza R. 11 Plus English tutor, GCSE English tutor, 13 plus  English ...

4 months ago

Answered by Hamza, an IB Biology tutor with MyTutor

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

18 SUBJECT SPECIALISTS

£20 /hr

Alice P.

Degree: Psychology (Bachelors) - Durham University

Subjects offered: Biology, Psychology

Biology
Psychology

“Hi, I'm Alice, and I'm a first year psychology undergraduate at Durham University. I enjoy psychology, biology and english, and I'm looking to tutor at GCSE and IB.”

£20 /hr

Erin B.

Degree: Biomedical Sciences (Bachelors) - Durham University

Subjects offered: Biology, Spanish+ 1 more

Biology
Spanish
Maths

“About me: I am currently in my first year studying Biomedical Sciences at Durham University. Prior to coming to the U.K., I completed the International Baccalaureate Diploma Program at an international school in Tokyo, Japan. I come ...”

MyTutor guarantee

£20 /hr

Alisa H.

Degree: Biomedical Sciences (Bachelors) - University College London University

Subjects offered: Biology, Maths+ 1 more

Biology
Maths
Chemistry

“About Me:  Hi! My name is Alisa and I am studying Biomedical Sciences at University College London. Having just attained the International Baccalaureate  certificate in 2015 and also having a younger sister who I frequently help with ...”

About the author

Hamza R.

Currently unavailable:

Degree: English Literature (Bachelors) - Durham University

Subjects offered: Biology, Maths+ 3 more

Biology
Maths
English
Chemistry
-Personal Statements-

“​ About Me: I'm just about to start my second year studying English Literature at Durham University. I'm an avid reader and I'd love to inspire a love of literature in any students I tutor. I managed to score a rare 45 points in the ...”

You may also like...

Posts by Hamza

How can immunity be acquired?

Why do d-block elements have coloured complexes?

Other IB Biology questions

What is the difference between a eukaryote and a prokaryote?

How can I learn all the difficult memory facts if I am not good at memorisation?

Explain how a nerve impulse passes along a non-myelinated neuron

Define Enzyme and Active site

View IB 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