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Mannitol salt agar (MSA) only allows the growth of halophiles. Among the halophiles, mannitol fermenters release acid that turns the pH indicator yellow; mannitol nonfermenters leave the medium red. Onto MSA you inoculate a halophilic mannitol fermenter and a nonhalophilic mannitol nonfermenter.  You see growth on only one of the plates. Given this scenario, the MSA acts as a _____ medium.

You perform an entire gram stain procedure from start to finish.  After you finish you, realize you forgot to perform the step containing the Iodine mordant.  Because of your error, what color would the gram-positive and gram-negative cells be on your slide?

Case Study 2:   An 85-year-old male was admitted to the emergency room of a New York City hospital suffering from breathing difficulties and coughing.  He had a high fever, cough, and chest pain. He had presented to his local physician 3 days previously complaining of fever, headache, malaise, and pneumonia-like respiratory symptoms.  A year ago he moved into a large long-term care facility after his wife died and he has been suffering from type two diabetes for the last thirty years.  Sputum was collected for culture and sensitivity.  A sputum gram stain indicated the presence of many white blood cells and pleomorphic gram-negative coccobacilli.  The organism causing the infection did not grow on the traditional media for sputum culture.  An additional urine specimen for antigen testing was then collected and sent to a reference laboratory to confirm the diagnosis. Case Study 2 Question 3:  Which characteristic is not true of the organism identified?

When discovered, retroviruses were a phenomenon in the biological world because, unlike other organisms and viruses, they can convert:

Targeting antibiotic therapy against the peptidoglycan cell wall of bacteria demonstrated differential toxicity because peptidoglycan is:

Find the slope of the line that is tangent to the function y=ln(x2+x) at x =2

https://youtube.com/embed/hPrND6ELH90?si=z6Mlrm0oTbDhLpLo

Important Exam GuidelinesI understand that unforeseen situations can arise, especially with small children. However, for adults or older children who might unintentionally assist during an exam, I must enforce strict guidelines. If something unexpected occurs, please explain the situation in your video during the exam and also send me a message through Pronto to keep me informed.Point Deduction GuidelinesUsing unauthorized electronic devices (except approved accessibility equipment): -100 points (resulting in a score of ZERO)Not completing a full 360-degree room scan (including using a mirror to show your table and computer screen; see video below for reference): -100 points (ZERO)Leaving the room during the exam: -50 pointsUsing notes during the exam: -100 points (ZERO)Camera not properly positioned (sideways, different angle, or not facing you): -100 points (ZERO)Intentionally moving out of frame: -50 pointsOnly part of your face is visible (Tip: Ensure your camera is positioned so your face remains fully visible, even if you slouch): -100 points (ZERO)Taking the exam on a bed instead of at a table: -10 pointsSomeone entering the room during the exam (exceptions for small children): -5 pointsWatching TV, listening to music, or being in a noisy environment during the exam: -100 points (ZERO)Reading the exam questions aloud without permission: -100 points (ZERO)

The first president of the United States of America was 

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