• BIOS 242 Week 4 Midterm Exam

Questions 1-50:


1.    Antoni van Leeuwenhoek was the first person in history to

2.    Microbes that can live in the presence or absence of oxygen are called

3.    Which of the following scientists provided evidence in favor of the concept of spontaneous generation?

4.    The microbial production of alcohol from sugar is known as

5.    Which of the following statements concerning Koch's postulates is false?

6.    The study of the body's defenses against pathogens is called

7.    Which of the following is NOT a characteristic of viruses?

8.    Saccharomyces cerevisiae is an example of which of the following types of microbes?

9.    Proteins that promote chemical reactions in the cell are called

10.   Which of the following scientists was the first to develop a taxonomic system for classifying organisms?

11.   Robert Koch was involved in research on all of the following topics

12.   Microorganisms characterized by the absence of a nucleus are called

13.   The term ___ literally means "produces disease."

14.   The study of the causation of disease is known as

15.   The study of the occurrence, distribution, and spread of disease is known as

16.   Short, hairlike structures used only by eukaryotic cells for movement are called

17.   Which of the following is NOT a component of bacterial cell walls?

18.   Endospores survive a variety of harsh conditions in part because of the presence of

19.   When cells are placed in a hypertonic solution, they lose water and shrivel. This process is called

20.   All of the following are common to both the Gram stain and the acid-fast stain

21.   A patient suffering from tuberculosis could be diagnosed by use of the ____ stain.

22.   Carbolfuchsin is the ____ in the acid-fast stain.

23.   The kingdoms included in the Linnaeus system are

24.   The rules of naming organisms are called

25.   In the Gram stain procedure, iodine serves as a

26.   Crystal violet is the _____ in the Gram stain.

27.   The _____ makes use of malachite green.

28.   The molecule that an enzyme acts upon is known as its

29.   Pyruvic acid is a product of

30.   In microbiology, the term growth usually refers to an increase in

31.   Human pathogens are classified as

32.   Organisms that can grow with or without oxygen present are

33.   Another term for the logarithmic growth of bacterial cells is

34.   During the ______ of growth, cells are dying faster than new cells are being produced.

35.   Metabolic activity is at maximum level in the _____ of growth.

36.   Cells are rapidly growing and dividing during the _____ of growth.

37.   Microaerophiles are microbes that grow best at low

38.   An acidophile thrives under conditions of low

39.   The bacterial chromosome is

40.   Which of the following is an example of sanitization?

41.   Aseptic means

42.   Which of the following is a sterilizing agent?

43.   The process of filtration is a(n)

44.   Which of the following is NOT a characteristic of a genus name?

45.   Acidic dyes

46.   All of the following are associated with smear preparation Question

47.   The Gram stain works because of differences in the ____ of bacteria.

48.   The metabolic processes called fermentation

49.   Which of the following is an incorrect pairing?

50.   Who discovered penicillin?



BIOS 242 Week 4 Midterm Exam

  • Institution(s): Devry
  • Year Published: 2021
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