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You are working in a medical laboratory. You have two patient samples that you have been asked to Gram stain in order to determine the causative bacterium for their infections. Patient A is suffering from an infection caused by a Gram-positive spherical shaped bacteria. Patient B is suffering from an infection caused by a Gram-negative rod shaped bacteria. (a) Describe the steps you will take to complete the Gram stain. (b) How will you distinguish between these two bacteria?

Which microscope uses light and filters to increase the contrast?

Cryptococcus neoformans is a microbe that can cause meningitis. Infection occurs through inhalation of spores. If individuals with a compromised immune system inhale spores, the microbe can divide and lead to inflammation of the meninges surrounding the brain and spinal cord. In addition to reproducing through spores, C. neoformans cells have a nucleus, membrane-bound organelles, and a cell wall composed of chitin. What type of microbe is C. neoformans?

Which class of microbes does not have mitochondria?

In the chemical equation: C6H12O6 + 6 O2 –> 6 CO2 + 6 H2O. What is(are) the product(s)?

When treating microbial infections, cells that are more different from human (animal) cells are the easiest to treat. Based on this information, infections caused by _____ are the more difficult to treat compared to other microbial infections.

Which class of organic molecules function as catalysts, transport materials, cell adhesion, communication, protection, and movement?

Ancient Greeks believed that diseases were caused by:

Which microscope uses light and filters to increase the contrast?

You are working in a medical laboratory. You have two patient samples that you have been asked to Gram stain in order to determine the causative bacterium for their infections. Patient A is suffering from an infection caused by a Gram-positive spherical shaped bacteria. Patient B is suffering from an infection caused by a Gram-negative rod shaped bacteria. (a) Describe the steps you will take to complete the Gram stain. (b) How will you distinguish between these two bacteria?