Small Lipids Atom Molecules Proteins Virus Bacteria 31 Only an electron microscope can be used to view (1) bacteria (2) mitochondria Organelles Source: Adapted from https://microbiologyinfo.com/different-size-shape-and-arrangement-of-bacteria- Eukaryotic Cells (animal and plant cells) (3) animal cells (4) viruses
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- Microbe 1 (photo below) • The genus name of this free-living aquatic microbe is for motility and a(n) • It uses to prevent osmotic lysis (fill-in blanks correctly) 512 OAmeoba ; pseudopods; contractile vacuole O Ameoba_: cilia: exosome O Paramecium_; cilia; exosome O Entamoeba ; flagella; exosome O Paramecium ; pseudopods; phagosomeSalmonella typhi Cyanobacteria Name of Anabaena spiroides microorganism (Genus species) Morphology Colonies or single cells? Size estimation Cellular structures found in each Write a short compare and contrast paragraph between the microorganism you chose and Anabaena. This paragraph should be at least 3-4 sentences long and include at least two similarities and two differences for full credit.Prokaryotes stain as Gram-positive or Gramnegative because of differences in the cell wall cytoplasm nucleus chromosome
- Sulfur Indole Motility (SIM) Medium H2S produced, color and +/-: ______________________________ Indole present/Tryptophan hydrolysis, color and +/-: ___________________________ Motile or non-motile: _____________________________Antibiotic Code Zone of Inhibition (mm) S, I, or R? Penicillin P 15 Streptomycin S 8 Ampicillin A 25 Chloramphenicol C 14 Bacitracin B 5 QUESTIONS: Which antimicrobial agent was most effective against your organism? Can you determine from your results whether this antimicrobial agent will also be most effective against another bacterium? Why or why not? Is this technique measuring bacteriostatic effect, bactericidal effects, or both? Explain. 4) Consider the following list of hypothetical antibiotics, tested against Escherichia coli in a Kirby-Bauer test: Antibiotic Zone of Inhibition (mm) Astonostatin 12 Bodaciosporin 25 Crazifloxacin 5 Dorkimycin 16 When the above antibiotics were tested as treatments for E. coli infections in humans, it was found that Dorkimycin has virtually no effect on the infection, while Astonostatin is the most effective of the four antibiotics listed. Propose an explanation for this result. Based purely on these…I U Cardo 12 1三 ニ 三 rI TI3 4. 111 I. 5. What are the basic shapes of bacterial cells? What are the basic Know the terms. Which types of organisms have axial filaments? How would classify the following in terms of gram stain reaction and shape and arrangement of the cells Escherichia coli? Staphylococcus aureus? Streptococcus pyogenes? Bacillus anthracis? Do these organisms cause any important diseases? arrangements? you III
- Preparing liquid media ↑ in cell # 1. Microbiologists use the term growth to refer to required for growth is fastidious 2 Another term (or descriptive phrase) used for vitamins, amino acids, and other complex organic compounds 3. A microbe that requires many preformed organic compounds for growth is said to be complex medium is 4. The thing that differentiates complex media from defined media is that the exact chemical composition of a 5. Two common components of complex media are and is the name of a sugar that is often added as an energy source to both complex and defined media. sulfate, the cell must be using 7. If a defined medium contains glucose, ammonium sulfate, potassium phosphates, manganese sulfate, and magnesium as its carbon and energy source. 8. Another name for a liquid medium is a 9. Sterilization is defined as PURIT True-False (correct all false statements) 1. Most common media used by microbiologists today are supplied as premixed powders that need only to be…TSA plates of microorganisms grown at 30°C or 37°C In words, describe the differences you see for each organism (E. coli M.,luteus ,S. marcescens and S. saprophyticus) grown at 30°C or 37°C (ie, amount of growth, color, etc2:16 Bacterial Growth Lab Back General Microbiology_23210 Use this data: time 30 oC 37 oC Minutes) OD 550 nm OD 550 nm 0.05 0.05 20 0.06 0.07 40 0.1 0.21 60 0.16 0.44 80 0.28 0.95 Graph your data on semi-log paper so that you get a straight line during the log phase. semi log_numbered[1]_(2).pdf As an alternative, I highly recommend using a spreadsheet- Excel, Google sheets-to plot the data. I will work on a tutorial for this. 4- Record your data in your lab notebook. Keep the graphs handy. Dashboard Calendar To Do Notifications Inbox
- I am doing my microbiology homework and I need help with these questions: 1) List the structures ALL bacteria possess. 2) Identify three structures SOME but not all bacteria possess. 5) Describe the structure and function of three different structures found outside of the bacterial cytoplasmic membrane. 6) Differentiate between the two main types of bacterial envelope structures. 7) Why are Gram-positive cell walls stronger than Gram-negative cell walls? 8) Name a substance in the envelope of SOME bacteria that can cause severe symptoms in humans. 9) Describe the causes of sporogenesis and germination 10) Compare and contrast the major features of archaea, bacteria and eukaryotes by completing the table below. Characteristic Bacteria Archaea Eukarya Chromosome Type of Ribosomes Protein Synthesis Similar to Eukarya Sterols In Membrane Membrane-bound Organelles Peptidoglycan in Cell wallCorynebacterium xerosis ~1X 2 micron Notice: angular and palisades 中e-Classification. Match the microbe/organism to its correct classification belongs to Domain Bacteria [Choose ] [ Choose ] prokaryote E. coli_ virus acellular microbe, contains nucleic acid helminth algae protozoa Kingdom Animalia photosynthetic eukaryotes, some may produce toxins causing "Paralytic Shellfish Poisoning" [Choose] animal-like, single celled eukaryotes [ Choose ]