Which of the following is NOT a characteristic of the bacterial plasma membrane?

Bacterial cytoplasm can contain all of the following, EXCEPT:

Which of the following BEST describes why bacterial attachment to host tissue cells is such a potentially serious, virulent factor?

The general name of the functional group of proteins that microorganisms use to anchor themselves to the surface of their hosts are called:

Usually, bacteria form more endospores in response to:

Which of the following would be the BEST term describing bacteria living in salt marshes?

Choose the among the answer choices below the pair that BEST completes the following statement: Microorganisms might be virulent (i.e., be capable of causing infectious diseases) because of:

When flagella are distributed all around a bacterial cell, the arrangement is called:

Which of the following would BEST explain why plasmids are considered virulent factors?

In which growth curve phase would you expect to observe the most endospores in a Bacillus cell culture?

Which of the following is an internal motile organelle that some bacteria like spirochetes use to propel themselves?

Choose the answer that completes the following statement. Electrons have a shorter wavelength than light microscopes. As a result, microscopes using electrons as their energy source have___________ resolution.

Suppose you were using a dark-field microscope to view bacterial cells. Which of the following BEST describes their general appearance using this particular microscope?

Which of the following is transmission electron microscopy (TEM) the BEST for viewing?

Which of the following forms of light microscopy would you use if you wanted the BEST combination of contrast and resolution necessary to look at LIVING cells?

The minimum distance that two objects may be separated and still be detected as two distinct particles, rather than a single particle is:

Choose the among the answer choices below the pair that BEST completes the following statement: In phase contrast microscopy, unlike other forms of microscope, the special optical system makes it possible to distinguish cells which differ slightly in their:

Choose the among the answer choices below the pair that BEST completes the following statement: The instrument that produces a dark image of the specimen against a bright background is called a(n) __________ microscope.

Which of the following forms of microscopy uses an ultraviolet light-source?

If you were given a specimen of an active, motile microorganism, which of the following types of microscopy would be the MOST EFFECTIVE in visualizing the live microbe?

An aquatic microbe that can grow only at the surface of the water is probably which of the following?

Which of the following is the BEST reason why psychrophilic bacteria will not grow in hyperthermophilic environments?

In our lab, we have an organism that is COMPLETELY dependent on atmospheric oxygen for growth. Which of the following terms BEST describes this organism?

Which of the following statements BEST describes an individual that is experiencing the convalescent phase of a typical infectious disease?

You and a friend are enjoying a hotdog with sauerkraut. You tell your friend, "you know sauerkraut is cabbage that is fermented by acidophilic bacteria". She looks at you confused, "acidophilic, what is that?" Which of the following would you tell her about these organisms?

You have an unknown microbe that grows in a broth tube. You have done some experiments and have observed that the microbe grows best at 87°C. Moreover, you observe some growth at 65°C, but not below. There is also some growth at 100°C, but not above that temperature. Based on this information, which of the following terms would you use to classify this microbe?

Some species of bacteria can grow in hot water, such as hot tubs that people have in their homes, some of which reach temperatures in excess of 100°F. Which of the following BEST describes bacteria isolated from such a hot tub?

Most human pathogens prefer temperatures near that of the human body. Which of the following terms BEST describes this temperature preference?

Which of the following is the reason jams and dried meats often do not require refrigeration to prevent spoilage?

If left there long enough, your frozen chicken breast eventually spoils in the freezer. Which group of bacteria is responsible for this spoilage?

Choose the among the answer choices below the pair that BEST completes the following statement: Bacterial endospores function is:

The water in Lake Natron in Tanzania water has pH is close to 10. Which of the following terms BEST describes bacteria isolated from Lake Natron?

Choose the among the answer choices below the pair that BEST completes the following statement: Obligate acidophiles grow best AT:

Which of the following pairs of growth terms and their corresponding temperatures are MISMATCHED?

Which of the following terms would BEST describe a facultative anaerobic organism?