Across
- 2. -an organism deriving its nutritional requirements from complex organic substances.
- 3. drug used to treat infections caused by bacteria and other microorganisms.
- 4. -a bacterium, virus, or other microorganism that can cause disease.
- 8. - A preparation that is used to stimulate the body's immune response against diseases.
- 9. -any organisms that can grow and survive only in the presence of oxygen as they derive ...
- 11. - microorganisms killed by normal atmospheric concentrations of oxygen
- 12. -the process of making something free from bacteria or other living microorganisms.
- 13. -any spherical or roughly spherical bacterium.
- 16. bacterium found mainly in the intestines of vertebrates and in the soil.
- 18. - an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
- 20. rigid covering that protects the cell,
- 21. -a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.
- 22. - a rod-shaped bacterium
Down
- 1. a prophage as hereditary material.
- 5. the bacterium Escherichia coli
- 6. -the protein shell of a virus particle that surrounds its nucleic acid
- 7. -A type of virus that has RNA instead of DNA as its genetic material.
- 10. to or causing lysis.
- 14. -a bacterium with a rigid spiral structure, found in stagnant water and sometimes causing disease.
- 15. -an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
- 17. of microorganisms considered to be an ancient form of life
- 19. polymer that is composed of polysaccharide and peptide chains and is found especially in bacterial cell walls.
