Which of the following statements are true of the bacteria pictured above? (Select all that apply.) The bacteria are bacilli in shape O The bacteria are vibrio in shape The bacteria are Gram negative
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Bacterial Morphology
The bacteria are prokaryotic organisms that are single-celled, and are found to exist as free-living and possess a microscopic size. The morphology is found to vary in the bacteria, where some of them are identified as individual organisms and the others are detected as colonies. The size and shape of the bacterial cell also represent its morphology.
Bacterial cell structure
Bacteria are single-celled, tiny creatures that may enter healthy tissues and grow rapidly. Bacteria are microscopic organisms that are tiny and unicellular. These are members of the prokaryote kingdom. They live in water, air, soil, and all-natural environments. They are used in industrial and therapeutic processes, and they support a wide range of plant and animal life. The first organism to appear on the planet. Bacteria-like creatures are the oldest known fossils. Bacteria can consume a wide range of organic and inorganic elements, and some may even survive in harsh conditions.
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- QUESTION 4 Which of the following is true about the bacteria pictured above? (Select all that apply.) The bacterial shape is diplobacilli. O The bacterial shape is bacillus. The bacteria circled on top have the arrangement "diplobacillus" O The bacteria circled on bottom have the arrangement "streptobacillus"QUESTION 7 CocciTetradDiplo Which of the following statements describes the Gram status, shape and arrangement for the bacteria circled on the right in the picture above? Gram negative, cocci, tetrad Gram negative, cocci, diplococci Gram positive, diplococci, cocci Gram positive, cocci, tetradQuestion 1 Note that it is not appropriate to self-diagnose outside of a medical context and this is a completely hypothetical scenario. Imagine you have a rash on your foot. You’re concerned that it’s an infection and inoculate a sample onto an agar plate. You wonder, How can I figure out whether the pathogen is a bacterium or a eukaryote? You decide to use lab supplies to get a basic understanding of the pathogen. What is one experiment you could do, involving culturing the organism? Be specific about what tests you use and what you expect the results to be. Limit yourself to experiments we have done/could do in our lab. What is a procedure you could do, involving making a slide of the organism? Be specific about what tests you use and what you expect the results to be. Limit yourself to experiments we have done/could do in our lab. Without testing anything, how do you know this is not a viral infection?
- Question 66 Which below is/ are acellular? (best answer) O prions and viruses Viruses O prions O Staphylococcus_Question 39 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 stationary phase concentration of endospores death/decline phase phase in which bacteria are most sensitive to lag phase antibiotics log/exponential stage many bacteria in biofilms are in this phase, thus are more resistant to antibiotics [ Choose ] stage at which "carrying capacity" is reached [ Choose ] phase in which bacteria are adjusting to new environment, synthesizing proteins, copying DNA in preparation for division [ Choose] phase when generation time/doubling time is [Choose] calculatedQuestion 9 Which resistant structure can Bacillus species form that E. coli cannot form? O mycolic acid rich cell wal| O thick layer of peptidoglycan in cell wall O lipid rich outer membrane of cell wall endospores
- Question 3 List three species of bacteria (using complete genus and species names, correct binomial nomenclature, and correct spelling) that can be differentiated using the Enteropleuri test (Enterotube) system.QUESTION 5 If the iodine step in a Gram-staining procedure was omitted, what color would you expect Gram-positive bacteria to stain, and what color would you expect Gram-negative bacteria to stain? O Gram-positive: purple Gram-negative: pink O Gram-positive: purple Gram-negative: purple Gram-positive: pink Gram-negative: purple Gram-positive: purple Gram-negative: colorless Gram-positive: pink Gram-negative: pinkQuestion 21 Which of these antibiotics will kill endospores of Bacillus and Clostridium? O antibiotics cannot kill endospores Beta-lactam antibiotics quinolones aminoglycosides
- QUESTION 3 Imagine that you are viewing a slide with a heat-fixed smear from an sputum sample that has been acid- fast stained. Bacteria from the sputum sample appear bright pink. On the same slide there is also a heat- fixed smear that contains Micrococcus luteus with cells that also appear bright pink. Does this pattern of staining support the hypothesis that the patient has tuberculosis? Why or, why not? O No, because the Micrococcus luteus cells should not stain pink, so there was probably an error in following the acid-fast staining protocol (e.g. perhaps the acid-alcohol step was eliminated or was too brief) No, because cells from the tuberculosis bacterium would not be expected to retain an acid-fast stain. Yes, because both tuberculosis bacteria and Micrococcus luteus are expected to retain an acid-fast stain. QUESTION 4 What species of bacteria could be used as a positive control for an acid fast stain? Any type of gram positive bacteria. Any type of gram negative bacteria.…Question 3 Which of the following is not associated with bacterial vaginosis (BV)? White, cottage-cheesy discharge Characteristic 'dead-fish' odor Mixed bacterial infection Clue cells seen under microscope << Previous Not saved SuQuestion 2 MSA is a selective medium and contains a higher salt concentration, a pH indicator and Mannitol sugar. Which of the following makes it selective me Staphylococci? OA Mannitol O B. PH indicator OC Agar O D, Salt