The presence of which of the following feature would best indicate a eukaryotic cell?

Which of the following is found in bacterial cells, but not in mature red blood cells?

Which of the following produces ATP without utilizing oxygen, even when oxygen is available?

Which of the following is not a characteristic of prokaryotes?

Sexually transmitted diseases are a common problem among young people in the United States. One of the more common diseases is caused by the bacterium Neisseria gonorrhoeae, which leads to inflammation and purulent discharge in the male and female reproductive tracts.

The bacterium has a number of systems to evade host defenses. Upon infection, it uses pili to adhere to host epithelium. The bacterium also uses an enzyme, gonococcal sialyltransferase, to transfer a sialyic acid residue to a gonococcal surface lipooligosaccharide (LOS). A depiction of this can be seen in Figure 1. The sialyic acid residue mimics the protective capsule found on other bacterial species.

Once infection is established, Neisseria preferentially infects columnar epithelial cells in the female reproductive tract, and leads to a loss of cilia on these cells. Damage to the reproductive tract can result in pelvic inflammatory disease, which can complicate pregnancies later in the life of the woman.

A scientist is using a Gram stain to investigate Neisseria. If Neisseria is bright pink upon examination after staining, which of the following is likely true?

Prokaryotes that can utilize oxygen if available, but do not require it, are called __________.

All of the following are true about bacilli bacteria except:

I. All bacilli are rod-shaped

II. All bacilli are gram positive

III. All bacilli are aerobic

Compared to gram negative bacteria, how many more membrane-bound organelles do gram positive bacteria contain?

Which of the following cell types does not have a cell wall?

Eukaryotes can share which of the following structures with prokaryotes?