Across
- 1. organisms whose cells lack a nucleus and other organelles
- 3. curved-shaped bacteria which can range from a gently curved shape to a corkscrew spiral
- 7. a group of microorganisms considered to be an ancient form of life that evolved separately from the bacteria and blue-green algae, and they are sometimes classified as a kingdom
- 10. A type of virus that has RNA instead of DNA as its genetic material
- 13. an organism that can produce its own food using light, water, carbon dioxide, or other chemicals
- 15. the firm nonliving layer that encloses and supports the cells of most plants, bacteria, fungi, and algae
- 17. an organism causing disease to its host
- 19. an organism that requires oxygen to grow
- 21. A drug used to treat infections caused by bacteria and other microorganisms
- 22. a rigid envelope surrounding the cytoplasmic membrane of most bacterial species
Down
- 2. live only in the absence of oxygen
- 4. A preparation that is used to stimulate the body's immune response against diseases
- 5. rod-shaped, endospore-forming aerobic or facultatively anaerobic, Gram-positive bacteria
- 6. a spherical-shaped bacterium
- 8. responsible for recognizing and puncturing the bacterial host and transferring the viral genome into the host during infection
- 9. the disintegration of a cell by disruption of its plasma membrane.
- 11. a process that destroys or eliminates all forms of microbial life and is carried out in health-care facilities by physical or chemical methods
- 12. includes organisms that live in a variety of environments, including; in fresh water and salt water, on land, and in the human body
- 14. an organism that eats other plants or animals for energy and nutrients
- 16. organism that breaks down dead organic material
- 18. the protein shell of a virus particle surrounding its nucleic acid
- 20. a method by which a virus can replicate its DNA using a host cell