Match the bacterial adaptation to its function. Fimbrae Flagella/Archaellum Capsule Pili Endospore Additional layer of protection Allows bacterial cultures to redevelop when less harsh conditions are found DNA Transfer Swimming and movement Many functions, allows bacteria to stick to surfaces & eachother
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- Below are the results of our disc diffusion study using antiseptics and disinfectants. Use the results to answer the following questions: Lab Lab Lysol 1:10 diluted Disinfectant Isopropanol soap Tincture of iodine bleach ISP T of I BL SO DIS LYS Diameter in mm of zone of inhibition E.coli 40 mm 20 mm 10 mm 15 60 mm Bacillus 20 70 mm 50 mm 35 mm 15 mm cereus CoOa blood -০9০- -hot-५pe ०fhemolysrs would miCrococcus reseushave? BorVhich of the following does NOT describe a mechanism of antibiotic resistance among bacteria O enzymes to hydrolyze or chemically alter the antibiotics O efflux pumps Omutations in target moleclues so that antibiotics can no longer bind O increased synthesis of porins to increase antibiotic diffusion across membranes O cell wall diffusion barrier, e.g. Gram-negative outer membrane, ACid Fast cell wall of Mycobacterium Question 9 Bonus: You are treating a patient with inhalation anthrax with antibiotics. After 2 weeks of antibiotics, the patient seems greatly improved and you discharge the patient.
- Match the description to the correct phase in a standard bacterial growth curve. best time to perform Gram stains [ Choose ] [Choose ] phase in which one would see the highest concentration of endopores lag phase stationary phase phase in which bacteria are most sensitive to log/exponential stage antibiotics death/decline phase many bacteria ih biofilms are in this phase, [Choose] thus are more resistant to antibiotics stage at which "carrying capacity" is reached [Choose ]Consider the given bacterial growth curve (X axis is time, Y axis is log number of viable cells). At which time point would you expect the greatest sensitivity (ability to be killed) by a drug like penicillin? 100 120 NO 20 time (minutes) O 100 minutes O 45 minutes O 15 minutes O 140 minutes Log a of viablk cellsFor the microne Ideonella sakaiensis if your microbe is cellular, include:o the general life cycleo the cell cycle and DNA replicationo how the cell divides state if it is eukaryotic or prokaryotic state the type of cell membrane/wall
- Match the descriptions given below to either the capsule or slime layer. An image is attachedof bacteria. The Gram stain works because of differences in the O 1) cell membranes O 2) genetic characteristics O 3) capsules O 4) antigens O 5) cell wallsApproximately how many bacterial colonies are present on plate B?
- Diseases that involve biofilm-producing bacteria are of serious concern. They are not as easily treated compared with those involving free-floating (or planktonic) bacteria. Explain three reasons why biofilm formers are more pathogenic. Brian goes to the hospital after not feeling well for a week. He has a fever of 38 °C (100.4 °F) and complains of nausea and a constant migraine. Distinguish between the signs and symptoms of disease in Brian’s case.1. identify the mycobacterium and staphylococcus, elaborate them and describe the shapes of it (you can use any objective from the two pics) 2. how are the cells of these bacteria different from plant and human body cells?Times New ... 11 BIU Q Q Normal Unknown #: Name: Unknown Bacteria Data Sheet Your unknown bacteria sample is one of the following species: Pseudomonas aeruginosa Serratia marcescens Staphylococcus aureus Staphylococcus epidermidis Enterobacter aerogenes Alcaligenes faecalis Bacillus megaterium Bacillus subtilis Enterococcus faecalis Escherichia coli Micrococcus luteus Proteus vulgaris Part 1: Gram Stain Gram stain: Cell shape: Based on your above results, indicate which tests need to be done & what media you need. Test Media Needed M !