LE Immune Vocab Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
pathogen | an organism that invades the body causing disease |
virus | nonliving particle of protein & genetic material that reproduces by invading the cell of a living organism |
bacteria | any one of many single celled organisms without a distinct nucleus |
fungus | mostly multicellular with cell walls made of chitin; heterotrophs |
protist | single celled organism with membrane bound genetic material & organelles |
host cell | organism that provides a home for the pathogen |
bacteriophage | a group of viruses that infect specific bacteria, usually causing their disintegration or dissolution |
Capsid | arrangement of proteins to determine shape of virus & what cells can be identified |
receptor site | protein molecules found on the cell membrane that can receive chemical messages from other cells; fit like lock & key |
lytic cycle | the virus reproduces, then weakens the cell wall enough that the cell will lyse, or burst open |
lysogenic cycle | virus incorporates its. genetic material into the genome of its host, allowing the. virus to lie dormant |
retrovirus | family of single-stranded RNA viruses having a helical envelope and containing an enzyme that allows for a reversal of genetic transcription, from RNA to DNA rather than the usual DNA to RNA |
viroids | single circular strand of RNA with no protein coats; causes infectious diseases in several plants |
diplo growth pattern | paired arrangement |
staphylo growth pattern | resembles clusters of grapes |
strepto growth pattern | chain arrangement |
endospores | tiny structures that contain bacteriums DNA & small amount of cytoplasm, encased by a tough outer covering that resists drying out, temperature extremes and harsh chemicals |
disease | breakdown of the homeostatic balance in the body |
lymph nodes | glands found throughout lymph system that cleanse lymph as it travels through the system |
nonspecific body defenses | immediate response, fights everything; skin, mucus, inflammation, fever |
specific body defenses | fights specific antigens with specific antibodies & creates memory cells to fight the antigen next time it is encountered |
T cells | bind to antigens & directly attack infected cells, helper T cells stimulate activity of killer T cells & production of B cells |
B cells | most secrete antibodies; some become memory cells to fight infection when reintroduced to body |
immune response | the response of the body to fight off a pathogen |
vaccine | dead or weakened form of a virus that is injected into a person to initiate the immune response and formation of memory cells without having the disease |
Created by:
jgarrisi
Popular Biology sets