Mmbio exam - Study guides, Class notes & Summaries

Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are phagocytized, capacity for intracellular growth, resistance to Gram-staining, detergents, many antimicrobial drugs, and dessication - Mycobacterium Tuberculosis Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when red swelling appears, BCG vaccine is used in countries w/ lots of TB cases, effective on 80% of children and 20-50% of adults, cord fact...

"The association of nonpolar groups or compounds with each other in aqueous systems, driven by the tendency of the surrounding water molecules to seek their most stable (disordered) state" is an example of: Correct Answer-*Hydrophobic interaction Which of the following is true about the chemical bonds found in proteins and nucleic acids? Correct Answer-*Atoms having a small difference between their electronegativities are more likely to form covalent bonds. The maximum number of bonds th...

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 Verified Answers. Developed smallpox immunization using cowpox agent - answerEdward Jenner Sought a "magic bullet" to destroy pathogens & not host - answerPaul Ehrlich Discovered penicillin - answerAlexander Fleming Pioneered aseptic surgery, Prevented surgical infections by using mists of phenol - answerJoseph Lister Father of Epidemiology (Cholera in London) - answerJohn Snow Pioneered asepsis by discovering that hand washing prevented streptococc...

Developed smallpox immunization using cowpox agent - Edward Jenner Sought a "magic bullet" to destroy pathogens & not host - Paul Ehrlich Discovered penicillin - Alexander Fleming Pioneered aseptic surgery, Prevented surgical infections by using mists of phenol - Joseph Lister Father of Epidemiology (Cholera in London) - John Snow Pioneered asepsis by discovering that hand washing prevented streptococcal infections in obstetric patients - Ignaz Semmelweis Pioneered the culti...

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 ...

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 -...

Define and describe the physical, chemical, and cellular components of the innate immune response. - Physical factors are barriers to entry or processes that remove microbes from the body's surface The epidermis consists of layers of tightly packed epithelial cells that are periodically shed. (makes up dust) That it is dry makes it inhospitable to microbes. Cebum- unsat fatty acids; inhibit growth of persperation Chemical factors are substances made by the body that inhibit microbial gr...

Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are phagocytized, capacity for intracellular growth, resistance to Gram-staining, detergents, many antimicrobial drugs, and dessication - Mycobacterium Tuberculosis Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when red swelling appears, BCG vaccine is used in countries w/ lots of TB cases, effective on 80% of children and 20-50% of adults, cord fact...