Microbiology: chp 3 multiple choice Flashcards
Asssume you stain Bacillus by applying malachite green with heat and then counter stain with safranin. Through the microscope the green structures are?
Three-dimensional images of live cells can be produced with
Carbolfuchsin can be used as a simple stain and a negative stain. As a simple stain, the PH is
higher than the negative stain
Looking at the cell of a photosynthetic microorganism, you observe that the chloroplast are green in brightfield microscopy and red in fluorescence microscopy. You conclude that
chlorophyll is fluorescent
Which of the following is not a functionally analogous pair of stains?
nigrosin and malachite green
assume you stain clostridium by applying a basic stain, carbolfuchsin, with heat, decolorizing with acid-alcohol, and counterstaining with an acidic stain, nigrosin, through the microscope, the endospores are______1___, and the cells are stained _____2___.
1----red: 2--- colorless
Assume that you are viewing a Gram-stained field of red cocci and blue bacilli through the microscope. You can safely conclude that you have
two different species
Which of the following is not a modification of a compound light microscope?
In 1996, scientist described a new tapeworm parasite that had killed at least one person. The initial examination of the patient's abdominal mass was most likely made using