Category: Uncategorized

Based on the table of attributes given below, which of the following statements are FALSE? Characteristic                        Bacterium A           Bacterium B Endospore formation             yes                            no Capsule                                    no                             yes Type IV pili                              yes                            no Flagella                                    no                             no Morphology                            bacillus                     bacillus  

    Based upon the information above, organism B:

Salmonella enterica Typhimurium produces endotoxin. A student performs a Gram stain on the organism and observes Gram positive cells. The student must have made an error during the Gram stain process. 

A student performs a Gram stain on a mixed culture and leaves the decolorizer on the slide for 30 seconds. Based on your knowledge of the Gram stain procedure, Gram-positive organisms will appear __________ and Gram-negative organisms will appear __________ under the microscope.

One of the main differences between eukaryotes and prokaryotes is the presence/absence of what structure?

If the decolorizer is NOT left on the specimen long enough in the Gram-staining procedure, Gram-positive organisms will be stained __________ and Gram-negative organisms will be stained __________ after the decolorizing step.

Penicillin and penicillin derivatives target what cellular processes?

      Based upon the information above, organisms A belongs to which category:

During DNA replication an ________ reaction occurs, causing a ________ molecule to act as the leaving group.

A transposon and retrotransposon differ in that