General microbiology
1. Which of the following is not one the six “I”s?
a. Inspection b. identification c. illumination d. incubation
2. The term culture refers to the____ growth of microorganisms in_______.
a. Rapid, an incubator b. macroscopic, media c. microscopic, the body d. artificial, colonies
3. A mixed culture is
a. The same as a contaminated culture c. one that has been adequately stirred
b. One that contains two or more known species d. a pond sample containing algae
4. A subculture is a
a. Colony growing beneath the media c. culture made in an embryo
b. culture made from a contaminant d. culture made from an isolated colony
5. resolution is ____ with a longer wavelength of light
a. improved b. not changed c. worsened d. not possible
6. a real image is produced by the
a. ocular b. condenser c. objective d. eye
7. A microscope that has a total magnification of 1,500x when using the oil immersion objective
has an ocular of what power?
a. 150X b. 15X c. 1.5X d. 30X
8. Motility is best observed with a
a. Hanging drop preparation b. streak plate c. negative stain d. flagellar stain
9. A fastidious organism must be grown on what type of medium
a. General-purpose medium b. synthetic medium c. differential medium d. enriched medium
10. Which structure is not a component of a cell?
a. Cell wall b. genetic material c. cell membrane d. ribosomes
11. Viruses are not considered living things because
a. They are cellular b. they lack metabolism c. they cannot reproduce on their own d. All of
the above
12. Which of the following is not found in all bacterial cells?
a. Cell membrane c. ribosomes b. nucleoid d. actin cytoskeleton
13. The major locomotor stuctures in bacteria are?
a. Flagella b. fimbriae c. pili d. cilia
14. An example of a glycocalyx is
a. Capsule b. outer membrane c. pili d. cell wall
15. Which of the following present in both gram-positive and gram negative
a. Outer membrane b. peptidoglycan c. teichoic acid d. lipopolysaccharides
16. An arrangement in packets of eight cells is described as a____.
a. Micrococcus b. tetrad c. diplococcus d. sarcina
17. Bacterial endospores function in____
a. Reproduction b. protein synthesis c. survival d. storage
18. Which stain is used to distinguish differences between the cell walls of medically important
bacteria?
a. Simple stain b. gram stain c. acridine orange stain d. negative stain
19. Features of the nuclear envelope include
a. Ribosomes b. double membrane structure c. pores d. b and c e. all of these
