Q. Which of the following methods is used for determining the decrease in the amount of growth?

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Q. Liquid water-soluble substances appropriately diluted are dispensed into sterile test tubes, to which are added a measured amount of the test organism and then this is transferred into tubes of sterile media.This method helps in determining _____________________

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Q. We observe increased growth in nutrient agar plates as concentration of chemical agent is decreased.

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Q. Which of the following acts as a test organism in the procedure of phenol-coefficient method?

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Q. Which of the following chemical agents lack penetrating power?

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Q. Which of the following agent is used to disinfect skin?

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Q. Iodine kills the microorganisms by causing denaturation of proteins.

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Q. Which of the following is the mode of action of formaldehyde?

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Q. For sterilization of plastic syringes in hospitals which of the following agents are used?

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Q. Which of the following agents cause death to the cell by coagulation of cytoplasmic proteins?

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Q. Gram-negative organisms are more susceptible to higher concentrations of triphenylmethane dyes.

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Q. Which of the following is an acridine dye?

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Q. Gonococci are inhibited by tryptoflavine in dilutions of ____________________

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Q. Ceepryn belongs to which of the following categories?

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Q. Which of the following agents are used as a preservative in ophthalmic solutions?

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Q. The phospholipids present in cytoplasm membrane of the archaeo-bacteria is

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Q. The oldest eukaryotic organisms are considered to be

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Q. The phospholipids present in cytoplasm membrane of eubacteria is mainly

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Q. Which were the investigators lived at the same time?

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Q. The unifying feature of the archaea that distinguishes them from the bacteria is

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