Ch 1 - Cowan, Microbiology Fundamentals: A Clinical Approach, 3e
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Course
Microbiology
Institution
Microbiology
Microbiology
Area of biology that deals with living things ordinarily too small to be seen without magnification.
Microorganisms/Microbes
living things too small to be seen without magnification; an organism of microscopic size
Ch 1 - Cowan,
Microbiology
Fundamentals: A
Clinical Approach,
3e
Microbiology Area of biology that deals with living things ordinarily too small to be seen without
magnification.
Microorganisms/Microbes living things too small to be seen without magnification; an organism of
microscopic size
Six major groups of microorganisms Bacteria, archaea, protozoa, fungi, helminths, viruses
Bacteria When capitalized, can refer to one of the 3 domains of living organisms proposed by Woese
containing all non-archaea prokaryotes
archaea (lowercase) prokaryotic single-celled organisms of primitive origin that have unusual anatomy,
physiology, and genetics and live in harsh habitats
, Archaea (uppercase) When capitalized, refers to one of 3 domains of living organisms proposed by
Woese
Protozoa a group of single-celled, eukaryotic organisms
Fungi Macroscopic and microscopic heterotrophic eukaryotic organisms that can be uni- or multi-cellular
Helminths parasitic worms
Virus Microscopic, acellular agent composed of nucleic acid surrounded by a protein coat. Not
independently living.
Algae Photosynthetic, plantlike organisms that generally lack the complex structure of plants; they may
be single-celled or multicellular and inhabit diverse habitats such as marine and freshwater
environments, glaciers, and hot springs. Do not directly infect humans.
Eukaryotic cell A cell that differs from a prokaryotic cell chiefly by having a nuclear membrane (a well-
defined nucleus), membrane-bound subcellular organelles, and mitotic cell division
Prokaryotes Small cells, lacking special structures such as nucleus and organelles. All prokaryotes are
microorganisms
Ubiquitous present or existing everywhere
Theory of evolution the evidence cited to explain how evolution occurs
Evolution the scientific theory that humans and other forms of life have evolved over time
Theory a scientific explanation supported by a lot of evidence collected over a long period of time. It is
taken as fact.
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