MYTUTOR SUBJECT ANSWERS

660 views

(Biology A-level) What are the different types of T cell and what is their function?

T cells come in three major groups: T helper cells (TH), T killer cells (TC - for cytotoxic, a term meaning kills cells), and regulatory T cells (Treg).

T helper cells play an important role in activating and coordinating the rest of the immune response. They release signalling molecules, generically termed as cytokines, to activate other immune cells as well as attract them to a site of infection. A large family of molecules that performs this role are the interleukins.

T killer cells play an important role particularly against viruses. This is because T killer cells will attack and kill your body's own cells which are infected and already compromised. Some bacteria, in addition to all viruses, live and reproduce inside your own body's cells, and they are the target of T killer cells.

The last T cell is the regulatory T cell. These have an important role in preventing the immune system from over-reacting to a pathogen or attacking your own body's cells unnecessarily. They also play a role in tolerance, and prevention of immune reactions to harmless stimuli such as food.

Oliver B. GCSE Chemistry tutor, GCSE Biology tutor, GCSE Geology tuto...

11 months ago

Answered by Oliver, an A Level Biology tutor with MyTutor


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

208 SUBJECT SPECIALISTS

£36 /hr

Jessica-Lily H.

Degree: MRes Experimental Neuroscience (Masters) - Imperial College London University

Subjects offered:Biology, Psychology

Biology
Psychology

“Top tutor from a world leading university- ready to do all I can to help you get your head around that tricky subject!”

£22 /hr

Jay G.

Degree: Biological Sciences (Biochemistry) (Bachelors) - Edinburgh University

Subjects offered:Biology, Maths+ 2 more

Biology
Maths
Mandarin
Chemistry

“I am here not only to help you get better at exams, but to help you enjoy your subject more”

£26 /hr

Shivali J.

Degree: Medicine (Bachelors) - Imperial College London University

Subjects offered:Biology, Maths+ 5 more

Biology
Maths
Chemistry
.UKCAT.
.BMAT (BioMedical Admissions)
-Personal Statements-
-Medical School Preparation-

“Who am I? I am a first year medical student at Imperial College London. I have always been curious about the world we live in and have satisified this innate drive to understand the world around us through science. I hope to share thi...”

About the author

PremiumOliver B. GCSE Chemistry tutor, GCSE Biology tutor, GCSE Geology tuto...

Oliver B.

Currently unavailable: until 31/07/2017

Degree: Medicine (PhD) (Doctorate) - Bristol University

Subjects offered:Biology, Science+ 5 more

Biology
Science
Physics
Geology
Extended Project Qualification
Chemistry
-Personal Statements-

“I have been teaching here since 2013 and use various teaching styles depending on what helps you to learn best!”

You may also like...

Posts by Oliver

(Biology A-level) What are the different types of T cell and what is their function?

(Biology GCSE) How does the body control blood glucose concentration?

(Chemistry A-level) What is a dative covalent bond?

(GCSE Chemistry) How do I work out the electronic configuration of an atom?

Other A Level Biology questions

What are the stages of mitosis?

What is a protein?

Describe the process of translation

Describe how fertiliser run-off can cause damage to a lake's ecosystem.

View A Level Biology tutors

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

mtw:mercury1:status:ok