Mmbio 221 exam - Study guides, Class notes & Summaries

Obligate halophiles - High osmotic pressure aka lots of salt like the great salt lake Facultative halophiles - Type that causes acne can be in salty also known as osmolaric but not nessesary Neutrophiles - Most bacteria Protozoa and pathogens like neutral ph rang 6.5-7.5 Acidophiles - Really acidic as low as 0 pH Alkalineophiles - Grow best in basic range up to 11.5 ex cholera Thermophiles - Higher temperatures above 45C ex hot springs Hyperthermophiles - Hottest 80C and above Mesophiles...

Fungi - cell wall made of chitin; Eukaryote Algae - cell wall made of silicates, eukaryotic Protozoa - Eukaryote Bacteria - Prokaryotic Virus - Acellular; only reproduce if they are inside of a living cell What allows a substance to cross a membrane - Protiens Substances that will never pass through a membrane - Charged substances Passive movement processes - No ATP needed 1. Diffusion 2. Facilitaed Diffusion 3. Osmosis Active Transport processes - Uniport Aniport Sy...

MMBIO 221 Final Exam Questions with Complete Solutions

MMBIO 221 FINAL EXAM STUDY GUIDE 2024 Who is the father of microscopy? Antonie van Leeuwenhoek Lamp: produces visible light to illuminate the specimen Condenser: collects light and directs it through the stage opening (converges or focuses the rays of light to a single point) Iris diaphragm: regulates the amount of light available to the objective lens Factors that affect microscope function: Resolving power, numerical aperture, magnification, working distance Resolving power: ab...

Which of the following microorganisms are not eukaryotic? - Bacteria....yeasts, molds, protozoa are eukaryotic Which microorganisms are used to make microbiological growth media? - Algae In which habitat would you most likely find archaea? - Acidic hot springs, swamp mud, Great Salt Lake Of the following scientists, who first promulgated the theory of abiogenesis? - Aristotle Which of the following scientists hypothesized that a bacterial colony arises from a single bacterial cell? -...

Who is the father of microscopy? Antonie van Leeuwenhoek Lamp: produces visible light to illuminate the specimen Condenser: collects light and directs it through the stage opening (converges or focuses the rays of light to a single point) Iris diaphragm: regulates the amount of light available to the objective lens Factors that affect microscope function: Resolving power, numerical aperture, magnification, working distance Resolving power: ability of a microscope to differentiate two ...

Edward Jenner - Developed small pox immunization using cowpox agent Paul Ehrlich - sought a " magic bullet" to destroy pathogens Alexander Fleming - discovered penicillin Joseph Lister - Pioneered aseptic surgery John Snow - father of epidemiology (cholera in London) Ignaz Semmelweis - Pioneered asepsis by discovering that hand washing prevented streptococcal infections in obstetric patients Robert Koch - Pioneered the cultivation of bacteria on solid media Louis Pasteur -...

Virulence characteristics, unique properties, and diseases caused by: Mycobacterium tuberculosis, - -virulent strains contain cord factor (cell wall component) which is necessary to cause disease -3 types: primary (results from initial infection), secondary (reestab. of active infection after period of dormancy), disseminated (when infection spreads thru body) -high risk ppl are those who contact infected persons and those with immunodeficiencies (HIV--combo has 90% chance of death) -diagno...