Immune System: B Cells Defense

Questions and Answers

To produce harmless invaders for vaccination

To recognize and defeat foreign invaders (correct)

To recognize and attack the body's own cells

To memorize the appearance of friendly cells

Hormone

Immunoglobulin (correct)

Vaccine

Antigen

So they can transmit the information to other B cells

So they can recognize and defeat the invader in the future (correct)

So they can attack the invader again

So they can forget the invader's appearance

To introduce a harmless invader into the body to stimulate an immune response Signup and view all the answers

The body's own cells Signup and view all the answers

Y-shaped Signup and view all the answers

They remember the invader's appearance forever Signup and view all the answers

Immunoglobulin Signup and view all the answers

White blood cells Signup and view all the answers

The B cell produces an antibody to neutralize the invader Signup and view all the answers

Study Notes

The immune system is the body's built-in defense against germs like bacteria, viruses, and fungi that can make us sick.
B cells are a specific type of white blood cell that act as soldiers in the immune system, responsible for recognizing and defeating invaders.

B cells circulate through the bloodstream, looking for anything that doesn't belong, and recognize the body's own cells as friendly.
B cells memorize the appearance of foreign invaders and produce a protein called an antibody to defeat them.
Antibodies are Y-shaped proteins that can bind to and neutralize invaders.

Once a B cell has recognized an invader and produced antibodies, it remembers the invader's appearance forever.
This means the body can fight off that specific invader for the rest of its life.

A vaccination is an injection of fake invaders that have been made harmless on the inside but still look like the real invader on the outside.
When a vaccination enters the bloodstream, B cells recognize the invaders and start making antibodies to neutralize them.
As a result, the body builds up a defense against the real invader, and if it ever tries to enter the body, the B cells are prepared to defeat it.