Immune System

Question 1

Describe how antibodies spread

Answer 1

Diseases need a opening into the body and reproduce in cells to spread.
Virus- spread through: air, food, water, insects, and sex.
Bacteria- spread through: air, sex, insects, touch, food, and water

Question 2

Describe how Bacteria and Viruses reproduce

Answer 2

Virus: by entering and utalyzing a host cell
Bacteria: Bianary fission (splitting in two)

Question 3

What is the first defense of the immune system?

Answer 3

Non-Specific Defense-skin:
*produced vitamin D when exposed to light
*protects from physical and chemical damage
*regulate internal body temperature by sweating and radiating heat (maintaines homeostatus-balance)

Question 4

Describe the antibody immune response

Answer 4

Pathogen enters body: (antigen cause immune system to attack
Macrophage: (eats disease and shits out antigen)
Helper T cell:(recognizes antigen as «non cell» and goes to B cell)
B cell: (divides into plasma cells and memory B cells + plasma cells produce antibodies 2000/sec)