How does the immune system function?

Biology

1 answer:

professor190 [17]3 years ago

3 0

Answer:

Immune system of the body helps in fighting with the infectious agents that are foreign for the body. So the immune system protects us from infection.

When any foreign substance(antigen) comes in the body B-lymphocyte recognize it by binding the antigen through its receptor. After recognizing the antigen, B cell divides into antibody-producing plasma cell and memory cell.

Antibodies produced by plasma cells help in destroying the antigen by getting the antigen recognized by phagocytic cells or by complement activation.

B cells are antigen-presenting cell which present antigen to T cell and then T cell activates and produce chemicals that kill the antigen. Therefore the immune system has many immune cells that activate when an antigen comes in the body. This is how the immune system functions.

You might be interested in

The fact that choanoflagellates and collar cells of sponges resemble each other supports the inference that ________. Group of a

antoniya [11.8K]

Answer:

choanoflagellates and sponges are sister groups

Explanation:

The choanoflagellates are small unicellular organisms belonging to the Protista kingdom. These microorganisms are collared flagellates morphologically similar to the choanocyte cells of animal sponges, which have a central flagellum surrounded by a collar of microvilli. In consequence, it has been suggested that choanoflagellates may represent the closest living relatives of primitive metazoans (i.e., they are sister groups to sponges). This hypothesis has recently been supported by both molecular phylogenetic and comparative genomic analyses.

6 0

3 years ago

A theory of evolution that states that a species evolves in spurts of rapid change and then goes through periods of no change is

Aleksandr-060686 [28]

A theory of evolution that states that a species evolves in spurts of rapid change and then goes through periods of no change is known as <span>punctuated equilibrium.</span>

8 0

3 years ago

No more than _____________ of your total calories should come from saturated fats.

RideAnS [48]

No more than 7% of your total calories should come from saturated fats.

8 0

4 years ago

The environmental in fluence that has the clearest, most profound effect on intellectual development is

qwelly [4]

Answer:

Being raised in conditions of extreme deprivation is an environmental influence that has the clearest, most profound effect on intellectual development.

Explanation:

8 0

3 years ago

1.What’s the name for excessive bodily hair growth in women?

AleksandrR [38]

1.Hirsutism

2. Seven

3. SeaHorses

7 0

3 years ago

Read 2 more answers