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©2003 Texas Trade and Industrial Education1 Bacteriology Bacteria Types, Classifications, Movement and Stages
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology2 Performance Objective Upon completion of this assignment, the student will be able to identify the structure and function of bacteria to the satisfaction of the instructor.
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology3 Specific Objectives 1. Define terms associated with the lesson. 2. Identify types of bacteria. 3. Explain the classifications of bacteria. 4. Describe bacterial growth and reproduction. 5. Explain the phases of bacteria.
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology4 Terms associated with lesson A. Bacteriology: The science that deals with the study of microorganisms called bacteria. B. Bacteria: minute, one-celled vegetable microorganisms found nearly everywhere; dust, dirt, refuse, and diseased tissue. 1. Also know as germs. 2. Can only be seen through the aid of a microscope; 1500 can cover the head of a pin.
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology5 Types of Bacteria Nonpathogenic and Pathogenic A. Nonpathogenic 1. Helpful or harmless. 2. Perform useful functions; decompose refuse and improve soil fertility. B. Saprophytes are a type of nonpathogenic bacteria that live on dead matter and do not produce disease. C. Pathogenic 1. Harmful. 2. Disease producing. 3. Invade plant or animal tissue. 4. Parasites are a type of pathogenic bacteria that require living matter for growth.
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology6 The Story of Pathogenic Bacteria There once lived a guy called Tyrone Cocci - He has a round shape -He likes to hang around singly or in groups -He is not very active -He is most comfortable when he is hanging out in the air or dirt
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology7 Tyrone Cocci’s Wives Tyrone Cocci had three wives: Staphylococci, Streptococci, and Diplococci -Mrs. Staphylococci; Tyrone Cocci did not like her because of these reasons; -She is pus-forming -She hangs out in bunches or clusters -She has a lot of abscesses, pustules, and boils -Mrs. Diplococcic; Tyrone Cocci did not like her because of these reasons; -She hangs out in bunches and causes pneumonia -Mrs. Streptococci; Tyrone Cocci did not like her because of these reasons; -She is pus forming -She hangs out in chains -She causes infections like strep throat
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology8 Tyrone Cocci’s Friends Bobby Bacilli and J.C. Spirilla -Bobby Bacilli -He has a short, rod-shape -He is a very common -He produces tetanus, influenza, typhoid fever, tuberculosis, and diphtheria -He drives a flagella or cilia
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology9 Tyrone Cocci’s Friends J.C. Spirilla -He has a curved, or corkscrew shape -He hangs out in groups -He causes general infections such as syphilis -He drives a flagella or cilia
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology10 Bacteria Growth & Reproduction A.Bacteria have an outer cell wall and internal protoplasm. B.Protoplasm is needed for bacteria to sustain life. Bacteria make their own food, give off waste, grow, and reproduce.
©2003 Texas Trade and Industrial EducationCosmetology I: Bacteriology11 Phases of Bacteria A.Active or vegetative stage 1.Bacteria grow and reproduce. 2.They multiply best in warm, dark, and damp or dirty places where there is sufficient food. 3.When bacteria grow to their largest, they divide into two cells B.Inactive or spore-Forming Stage 1. When conditions are unfavorable, bacteria die or become inactive. 2.During this stage, some bacteria form tough outer walls coverings called spherical spores; these walls protect them from dryness and unsuitable temperatures.
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