Q. The combination of low levels of NaCl, NaNO3 (sodium nitrate), and slightly acid pH can prevent multiplication and toxin formation of

View solution

Q. Bacteria of genus Nitrosomonas use __________ as their electron source.

View solution

Q. All organisms require at least small amounts of carbondioxide, However, some can use CO2 as their sole source of carbon. Such organisms are termed as

View solution

Q. The generation time of a culture that produces two generations per hour is

View solution

Q. Autotrophic bacteria are those which

View solution

Q. Which of the following organisms typically get their carbon for biosynthesis from organic compounds?

View solution

Q. An organism is completely dependent on atmospheric O2 for growth. This organism is

View solution

Q. Microaerophilic bacteria are those which require

View solution

Q. The period between inoculation of bacteria in a culture medium and beginning of multiplication is known as

View solution

Q. The term aerotolerant anaerobe refers to an organism that

View solution

Q. The term obligate anaerobe refers to an organism that

View solution

Q. The fragmentation occurs in

View solution

Q. The bacteria which is novobiocin resistant is

View solution

Q. The bacteria which are inhibited on crystal violet (1:500,000) blood agar, is/are

View solution

Q. Which of the following Staphylococcal haemolysins does not possess leucocidal activity?

View solution

Q. The genus/genera that belongs to the family Micrococcaceae is

View solution

Q. Identify the bacteria which is oxidase-negative and catalase-positive?

View solution

Q. Coagulase-reacting factor is necessary for

View solution

Q. Bacteria which produces coagulase is

View solution

Q. Staphylococcal food poisoning usually manifests itself following ingestion of contaminated food after

View solution