Biology- immune system Questions and Answers

Biology- immune system Questions and
Answers
Line of defenses in the body - ✅✅First line of defense:

Second line: inflammatory response

Third line: immune response



Mucus is produced by healthy tissue including the... - ✅✅Respiratory tract and intestinal tract



A chemical that is produced as a part of the inflammatory response is... - ✅✅Histamine



A type of human immune system cell that ingests pathogens by phagocytosis is - ✅✅Macrophage



Enzymes that break down the bacterial cell walls - ✅✅Lysozymes



The two main types of lymphocytes - ✅✅T cells and B cells



First line defense - ✅✅Has barriers that prevent pathogens from entering your body's cells in the first
place. The barriers act to trap and kill most pathogens and include the surfaces of the skin, bragging
passages, mouth, eye and stomach chemicals



Skin - ✅✅Forms a physical and chemical barrier



Breathing passages - ✅✅Mucus and cilia trap and remove pathogens by sneezing or coughing



Mouth - ✅✅Saliva has antibacterial chemicals to kill the pathogens



Stomach - ✅✅Stomach acid kills the pathogens