Exam 47: Microbiology and Disease

A microorganism capable of causing disease is a ____.

Which of the following are pairs of cocci?

A(n) ________ agent is a living microorganism or its toxin that may cause human disease. A label with this and a biohazard symbol must be affixed to a package containing a microbiologic specimen sent through the mail.

Rick, a 22-year-old patient, has had a bad cough that has lasted almost a month. He says his chest hurts, and he has been coughing up blood. Since his last visit three months ago, he has lost 12 pounds. His temperature is 101.9 $\degree$ F. For which of the following diseases might you expect the physician to test?

The microorganisms pictured here are ____.

Iodine is an example of a(n) ________, which is a substance that intensifies or deepens the response of a specimen to a stain.

Anaerobes are bacteria that ____.

Determination of the number of bacteria present in specimens is called ____.

A(n) ________ medium is a substance that contains all the nutrients a particular type of microorganism needs to grow.

Semisolid culture media contain a gelatin-like substance derived from seaweed, called ________, which gives them their consistency.

A substance that can intensify or deepen the response of a specimen to a stain is called a(n) ____.

Which of the following microorganisms cause diseases that are a leading cause of death in developing countries because of lack of proper sanitation?

Which of the following, found in insects such as ticks and mites, are responsible for diseases such as Rocky Mountain spotted fever and typhus?

Which of the following is included in specimen-collection guidelines?

In cases of a suspected parasitic worm infestation, the physician may request a(n) ________ specimen.

The comma-shaped bacteria pictured here are ____.

Which of the following is the most common staining procedure, which differentiates bacteria according to the chemical composition of their cell walls?

Which of the following is characteristic of resident normal flora?

A single-celled eukaryotic organism that is generally much larger than bacteria and is found in soil and water is called a(n) _______. These organisms can cause diseases such as malaria and amebic dysentery.

A solution of a dye or group of dyes that imparts a color to microorganisms is a ____.