Vocabulary # 4 Virus

Virus


 Virus: A chromosome-like part surrounded by a protein coat.

Host: An organism that provides food for a parasite.







Parasite: An organism that lives in or on another living thing and get food from it.

Interferon: A chemical substance that interferes with the way viruses reproduce.

Vaccine: Substances made from weakened or dead viruses that protect you against certain deseases.

Bacteria: Very small one-celled monerans.

Colony: A group of similar cells growing next to each other that do not depend on each other.

Capsule: A sticky outer layer produced by bacteria.






Flagellum: A whiplike thread used for movement by bacteria.






Fission: The process of one organism dividing into two organism.






Asexual Reproduction: The reproducing of a living thing from only one parent.

Endospore: A thick-walled structure that forms inside a bacterial cell.

                                       
 Saprophyte: Organism that used dead materials for food.

Decomposer: Living things that get their food from breaking down dead matter into simple chemical.

koch´s Postilates: Stept for proving that a desease is caused by a certain microscopic organism.

Communicable Disease: Those that can be passed from one organism to another.

Antibiotic: Chemical substance that kill or slow the growth of bacteria.

biotechnology: The use of living things to solve practical problems.

pasteurization: The process of heating milk to kill harmfull bacteria.

Blue-green bacteria: Small  one-celled morenans that contain chlorophyll and can make their own food.