A Culture of an Organism Believed to Cause Intestinal Symptoms

question 42

Multiple Choice

A culture of an organism believed to cause intestinal symptoms is viewed under the microscope, and the microbiologist observes a cell membrane, flagella, mitochondria, and some dark unrecognizable structures within each cell.The microbiologist notes that the cells are eukaryotic because

• A)the dark structures must be the cell nuclei.
• B)only eukaryotic cells have a cell membrane.
• C)only eukaryotic cells have flagella.
• D)only eukaryotic cells have mitochondria.