Microbiology

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Across
  1. 4. an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.
  2. 5. a substance used to stimulate the production of antibodies and provide immunity against one or several diseases
  3. 6. a medicine (such as penicillin) that slows the growth or destroys microorganisms.
  4. 7. a simple, non-flowering, and typically aquatic plant of a large group that includes the seaweeds and many single-celled forms.
  5. 8. any of a group of RNA viruses that cause a variety of diseases in humans and other animals.
  6. 12. causing or likely to cause harm.
  7. 13. resulting in good; favourable or advantageous.
  8. 14. Blood Cells part of the body's immune system. They help the body fight infection and other diseases.
  9. 17. a marked effect or influence.
  10. 19. a single-celled organism of the kingdom Protista, such as a protozoan or simple alga.
  11. 20. a microorganism, especially a bacterium causing disease or fermentation.
  12. 21. an animal or plant on or in which a parasite or commensal organism lives
  13. 22. any of a group of spore-producing organisms feeding on organic matter, including moulds, yeast, mushrooms, and toadstools.
  14. 25. so small as to be visible only with a microscope
  15. 26. to a process of partial sterilization, especially one involving heat treatment or irradiation, thus making the product safe for consumption and improving its keeping quality.
  16. 27. the ability of an organism to resist a particular infection or toxin
Down
  1. 1. the invasion and growth of germs in the body
  2. 2. (of an organism or part) having or consisting of one cell
  3. 3. a serious disease in which there is inflammation of the meninges, caused by viral or bacterial infection, and marked by intense headache and fever, sensitivity to light, and muscular rigidity.
  4. 9. System the organs and processes of the body that provide resistance to infection and toxins. Organs include the thymus, bone marrow, and lymph nodes.
  5. 10. (of an organism or part) having or consisting of many cells
  6. 11. the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body
  7. 15. a protective protein produced by the immune system in response to the presence of a foreign substance
  8. 16. a microscopic organism, especially a bacterium, virus, or fungus.
  9. 18. a bacterium, virus, or other microorganism that can cause disease.
  10. 23. an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.
  11. 24. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some which can cause disease.