Question

Homework Help!
A person becomes infected with a pathogenic bacterium. Analyze the model below that represents the high specificity of the immune system for dealing with the pathogen. Describe each response (A - E) of the immune system that has encountered the bacterium.

Answer 1

I'm confused with the question

Answer 2

Are you just describing what everything does?

Answer 3

fifib?

Answer 4

I think that is what the question wants. to describe what happens in each stage @freeG13

Answer 5

wait one moment

Answer 6

white blood cell help protect the body against both infectious disease and foreign invaders.

Answer 7

by engulfing bacteria

Answer 8

yes

Answer 9

That's part A huh?

Answer 10

Yes also the T helper cells help in the adaptive immune system. They help the activity of other immune cells by releasing T cells. These cells help suppress or regulate immune responses. They are essential in B cell antibody class switching, in the activation and growth of cytotoxic T cells, and in maximizing bactericidal activity of phagocytes such as macrophages.

Answer 11

I'm using the wiki

Answer 12

B cells are a type of white blood cell of the lymphocyte subtype. They function in the humoral immunity component of the adaptive immune system by secreting antibodies. Additionally, B cells present antigen (they are also classified as professional antigen-presenting cells (APCs)) and secrete cytokines.

Answer 13

Oh okay , so that would have been B and partly C right? (the description)

Answer 14

Also B cells express B cell receptors (BCRs) on their cell membrane. BCRs allow the B cell to bind a specific antigen, against which it will initiate an antibody response.

Answer 15

What is part D? does it release those things? or is it the binding process

Answer 16

Yes

Answer 17

Alright

Answer 18

I hope this is helping

Answer 19

It is :) So E would be the end product, which is?

Answer 20

The second activation signal occurs via either a thymus-dependent or a thymus-independent mechanism. Most B cell responses to antigen require the interaction of B cells with T helper cells (thymus-dependent activation). Presentation of an antigen-class II MHC complex on a B cell enables it to act as an antigen-presenting cell (APC) to T cells

Answer 21

I hope that helps you

Answer 22

fifib are you there?

Answer 23

Yes I am :) Just reading sorry

Answer 24

um is that all?

Answer 25

Yes Thank you :) You have been so helpful

Answer 26

Thank you