D. None of these 28-What are two commonly used isolation procedures for obtainin

Question

D. None of these 28-What are two commonly used isolation procedures for obtaining pure cultures A. B. C. D. Streak and pour plate Streak and loop plate Quadrant and radiant streak All of the above 29-Molds are fungi that grow in the form of multicellular filaments called A. Septa B. Hyphae C. Blastospore D. Pseudohyphae 30-Helicobacter pylori is a microaerophile that prefer to grow in A. No oxygen B. 2-10% of oxygen C. 20 % of oxygen D. B and C 31-Fluid thioglycollate medium (FTM) is a rich medium that supports the growth of A. Aerobic organisms B. Anaerobic organisms C. Both A and B D. None of the above 32-What is a colony? A. A mass of cells that derived from a single cell B. Cells from different species C. A and B D. None of these

Explanation / Answer

28. B. loop plate methods is used to identify viable counts. Option b is incorrect

C. Quadrant streak method is used for showing the colonies thinning in streak. So this is also incorrect.  

A. Streak plate methods is usually used for isolation of the pure culture. As well as pour plate also determine the pure culture from mixed culture. So option a is correct.

29 A. Septa is the divided cells of hyphae by internal cross walls. So option a is incorrect.

C. Blastopore is a fungle spore which is formed by budding. So option c is also incorrect.

D. Psedohyphae is a vegetative growth form of candida albicans. So option d is also incorrect.

B. Hyphae is the branching filmentous structure of the fungi. So option B is correct.  

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