Bacteria and Viruses Crossword Puzzle

QUESTIONS LIST:

• virus : strand of dna or rna surrounded by a layer of protein that can infect and replicate in a host cell
• flagellum : long whiplike structure on bacteria
• vaccine : a mixture containing material from one or more deactivated pathogens, such as viruses
• pasteurization : process of heating food to a temperature that kills most harmful bacteria
• fission : cell division that forms two genetically identical cells
• antibody : a protein that can attach to a pathogen and make it useless
• endospore : forms when a bacterium builds a thick internal wall around its chromosome and part of the cytoplasm
• antibiotics : medicines that stop the growth and reproduction of bacteria
• conjugation : two bacteria of the same species attach to each other and combine their genetic material.
• bioremediation : the use of organisms, such as bacteria, to clean up environmental pollution
• decomposition : the breaking down of dead organisms and organic waste
• nitrogen fixation : is the conversion of atmospheric nitrogen into nitrogen compounds that are usable by living things
• bacterium : microscopic prokaryote
• pathogens : agents that cause disease