Mmbio 221 exam 1 - Study guides, Class notes & Summaries

MMBIO 221 Exam 1 (Ch 1-6) Questions with Complete Solutions

MMBIO 221 Exam 1 Breakwell Question with Complete Solutions

Carolus Linnaeus Correct Answer-system for naming plants and animals and grouping similar organisms together Carl Woese Correct Answer-o 3 Domains: Eukaryotes, Bacteria, Archaea o started sequencing rRNA, saw that 16S RNA has to be highly conserved, found that there are 3 domains of life o the phylogenetic tree is based on Woese's rRNA analysis Antoni van Leeuwenhoek Correct Answer-o made and looked through microscopes o Father of Microscopy Aristotle Correct Answer-spontaneous gene...

A case in an outbreak of dysentery was defined as a patient in a psychiatric rehabilitation center in Taipei, Taiwan, who had diarrhea (loose stools three and more times a day in the past week and who had tested positive for the dysentery bacillus, Shigella sonnei, and that had blood in the feces. For precise analysis of the outbreak, what additional information is needed for a proper case definition? Correct Answer-No further information is needed for the case definition. During 2015, state ...

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

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 ...

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...

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? -...

MMBio 221 Final Exam Study Questions and Answers Graded A 2024 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 o...