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Micro Unit 1, Ch.1: Humans and the Microbial World

STUDY
PLAY
Microorganisms
living things too small to be seen without a microscope
Pathogens
disease-causing microbes
Virulence
strength of microbe to cause disease
Antibiotics
natural substances produces by bacteria and fungi to kill other microbes
Aseptic Techniques
procedures that prevent contamination
Theory of Spontaneous Generation
organisms can arise from non-living materials
Germ Theory of Disease
microbes cause disease
Robert Hooke
discovered plant cells with microscope (lens, tube, plants, "little compartments")
Leeuwenhoek
discovered microbes (in pond water)
Tyndall and Cohn
discovered heat resistant forms of bacteria called endospores
Virchow
discovered all cells come from pre-existing cells
Pasteur
showed that microbes can be destroyed or blocked
Lister
began aseptic techniques in medicine
Jenner
developed the idea of vaccination
Alexander Flemming
developed a set of steps for determining if disease is caused by a certain microbe
Nomenclature
naming (using catagories)
5 Kingdoms developed by Whittaker
Monera, Protista, Fungi, Plants, Animals
Monera
bacteria, single cells without a nucleus
Protista
single cells with a nucleus
Fungi
single or multi celled organisms with a nucleus and cell walls made of Chitin
Algae
single or multi celled plants that live in the water
Viruses
acellular particles (not a complete cell); made of two basic things (hereditary material surrounded by protein)
Helminthes
worms