Q:

True or false: can you see, smell and taste microorganisms?

A:

Quick Answer

You cannot see a microorganism without using a microscope. You also cannot taste or smell microorganisms such as bacteria in contaminated food. However, you can smell the odor of bacteria metabolizing sweat. Toenail fungal infections also produce an odor.

Continue Reading

Full Answer

While all the bacteria and archaea are microorganisms, only some fungi and algae are. Some animals, such as rotifers and almost all protozoa, are microscopic. The tiny organisms live in soil, the atmosphere, on the ocean floor and deep inside rocks. Microorganisms aid decomposition in the recycling of nutrients in ecosystems. Airborne microorganisms may influence precipitation and weather. Others are active in the nitrogen cycle.

Learn more about Cells

Related Questions

  • Q:

    Why are microscopes so important?

    A:

    Microscopes are important because they allow scientists to study microorganisms, cells, crystalline structures and molecular structures. Microscopes are one of the most important diagnostic tools when doctors examine tissue samples. Electron microscopes help create the very tiny electrical circuits found on silicon microchips. Scanning microscopes are much more sophisticated, and have higher magnifications, than light-refracting microscopes.

    Full Answer >
    Filed Under:
  • Q:

    What is microbial antagonism?

    A:

    Microbial antagonism is the method of using established cultures of microorganisms to prevent the intrusion of foreign strains. When introduced to an already-colonized environment, an invasive strain of bacteria tends not to thrive and may go completely extinct.

    Full Answer >
    Filed Under:
  • Q:

    What is anaerobic bacteria?

    A:

    Anaerobic bacteria are microorganisms which can exist in an environment free of oxygen. Some strains can tolerate the presence of oxygen, others use oxygen when it is present in their environment and still others cannot survive in an environment which contains oxygen.

    Full Answer >
    Filed Under:
  • Q:

    What is biofilm?

    A:

    Biofilm is a group of microorganisms that are joined together on a surface. They adhere to each other with molecular strands called extracellular polymeric substances, or EPS.

    Full Answer >
    Filed Under:

Explore