Peptidoglycan Guides d'étude, Notes de cours & Résumés

MICROBIOLOGY FINALS EXAM REVIEW Chapter 3 Eukaryotes cells are defined by the presence of a membrane bound nucleus The two magnifying lenses found in the light microscope are the —ocular and objective The major criteria used in placing bacteria into different groups is based on differences in — cell wall structure. In a basic staining procedure, correct order: smear, fix, stain SFX The acid fast stain— is useful for distinguish a small group of organisms, including mycobacterium an...

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...

What are the 5 ways drugs kill organisms - ️️Cell Wall Synthesis Inhibitors Plasma Membrane Damage Protein Synthesis Inhibition Nucleic Acid Synthesis Inhibition Metabolic Pathway Inhibition Cell wall inhibitors - ️️Beta lactam Glycopeptide Beta Lactam drugs - ️️Penicillin Cephalosporin Carbapenem Monobactam Glycopeptide drugs - ️️Vancomycin Teicoplanin Links amino acids (D-ala-D-ala) in peptidoglycan - ️️Transpeptidase (PBP) Links glucans (NAM & NAG) in peptido...

Fungi: 3 major morphological groups CORRECT ANSWER 1. Multicellular filamentous molds -old food/classic fungus 2. Multicellular fruiting body formers -Fruiting bodies = Mushrooms (fungus is in the soil) 3. Yeasts -single celled Unique properties of Fungus: Cell wall CORRECT ANSWER Thematically similar to bacteria & archaea but contain differences eg: -Chitin: protein; insect shells are made of this -Mixed glycans: similar to peptidoglycan but in a dif order Can also secrete gl...

basic stains CORRECT ANSWER methylene blue, crystal violet, safranin are all examples of what kind of stain? acidic stains CORRECT ANSWER nigrosin is an example of what kind of stain? 1. smear preparation 2. fixation (heat) 3. staining CORRECT ANSWER simple staining procedure bibulous paper CORRECT ANSWER a special absorbent paper used to dry slides; blotting paper 10x CORRECT ANSWER what objective lens should you always start with? 40x and 100x CORRECT ANSWER When focusing the ...

Which of the following is a true statement concerning bacteria and archaea? CORRECT ANSWER While some bacteria are pathogenic to humans, no archaea are known to cause human diseases What was Leeuwenhoek's contribution to the science of microbiology? CORRECT ANSWER He developed the first microscope. characteristic of bacteria CORRECT ANSWER Have cell walls that contain peptidoglycan Derive nutrition from organic or inorganic sources or conduct photosynthesis characteristic of archaea...

beta-oxidation correct answer: enzymes repeatedly split off pairs of they hydrogenated carbon atoms that make up a fatty acid and join each pair to coenzyme A to form acetyl-CoA Chloroplasts correct answer: light harvesting structures found in photosynthetic eukaryotes; synthesize a few polypeptides compare and contrast archaeal flagella with bacterial flagella correct answer: archaeal are about half as thick as bacteria; not hollow; lack a central channel; flow together; powered by ATP...

Haemophilus influenzae is a Gram-negative coccobacillus. If you looked at a Gram-stained culture using a light microscope, you would expect to see CORRECT ANSWER • pink, very short rods. If the decimal reduction time is 1 minute, how many minutes would it take to kill all organisms when starting with 100,000 organisms? CORRECT ANSWER 6 A research laboratory is investigating environmental factors that would inhibit the growth of Archaea. One question they have is if adding the antibiotic ...

Name the 8 levels of taxonomic classification that organisms can be grouped into.(Make sure that the order is correct) (Did King Philip Come Over From Great Spain) - correct answer -Domain -Kingdom -Phylum -Class -Order -Family -Genus -Species Who was the father of evolution? - correct answer Charles Darwin Name the 3 domains studied in class - correct answer -Eukarya -Bacteria -Archaea Name the 4 kingdoms of eukarya - correct answer -Protista -Fungi -Plantae -Anima...

Biodiversity - Answer-The variability among living organisms from all sources and the ecological complexes of which they are part; includes diversity within and among species and ecosystems -Prokaryotes are so important to the biosphere that if they were to disappear, the prospects of survival for many other species would be dim Why study biodiversity? - Answer--To understand evolution of life -To appreciate nature -To assess its economic value -To see the larger impact of humans on the e...