9 Coeei that form long chains are called a diplococei b eukaryotes e staphylocos

Question

9 Coeei that form long chains are called a diplococei b eukaryotes e staphylocossi d. streptococe 10. Molds have microscopic filaments called a sporozoites b. hyphae .pill d. cilia 11. The eyanobacteria use solar energy to fix the carbon dioside. They are classified as b chemon e. autotrophs 12. In basie staining procedure, what is the correct order? a. fix, smear, stain b fix, stain, smear e, smear, fix, stain d. none of the above 13. Which of the following stains is /are considered differential? a. Gram stain b, capsule stain c. acid fast staind. a and c 14. Which of the following is false about Gram staining? a, the first dye is carbol fuchsinee, the decolorizer is an alcohol solution b. the counterstain is safranin d. the mordant is Gram's iodine 15. What structure of the bacterial cell appears to play the most important role in determining whether an organism is Gram negative? a. the thin layer of peptidoglycan that comprises the cell wall of this organism b. the thick layer of peptidoglycan that comprises the cell wall of this organism e. the L.PS layer that comprises the cell wall of this organism d. the plasma membrane of this organism 16. Which of the following is acid- fast microorganism? a. Aycobacteriac. Streptococcus b. Bacillus d. none of the above 17. True or False (True -A; False -B) The only asexual spore produced by yeasts is called blastopore o bud 18. True or False (True A; False B). The capsule of Streptococcus pmeumoniace prevents phagocytic white blood cells from engulfing and destroying this bacterial pathogen 19. To destroy endospores by heating, they must be exposed for 15 to 20 minutes to steam under pressure, which generates temperatures of 121 degree Celsius. Such conditions are produced in a. an incinerator b. an oven e. an autoclave d. a hot speed vacuum 20. In the O/F glucose test, which of the following bacteria is capable of metabolizing slucove aerobicaly and anaerobically ? a. Streptococcus pyogenes c. E col d. none of the above aureus 21. In Simmon's citrate agar, the ammonium salts serve as the a. sole source of carbon c. sole source of nitrogen d. sole source of proteins b. sole source of lipids

Explanation / Answer

9) streptococci

10) hyphae

11) Photoautotrophs

the options doesnot have photoautotrophs

12) Smear, fix, stain

13) Gram stain

14) the first dye is carbol fuchsine

15) the thin layer of peptidoglycan that comprises the cellwall of this organism

16) mycobacteria

17) A

18) A

19) autoclave

20) E.coli

21) source of nitrogen

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