NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Based just on the name, which of the following groups of bacteria contains entirely species that consume organic compounds for food?

A	cyanobacteria
B	green nonsulfur bacteria
C	green sulfur bacteria
D	nonphotosynthetic bacteria

Explanation:

Detailed explanation-1: -Bdellovibrio bacteriovorus is a predator of other Gram-negative bacteria.

Detailed explanation-2: -Lactococcus lactis is a member of the mesophilic group of bacteria forming one of the main constituents in both industrial and artisanal starter cultures. The principal role of lactococci in dairy fermentations involves the metabolism of lactose to lactic acid and the conversion of milk proteins into flavor compounds.

Detailed explanation-3: -On the basis of their energy source and the carbon, bacteria are divided into two major classes: autotrophs and heterotrophs.

Detailed explanation-4: -A genus is a group of related species, and a family is a group of related genera. An ideal genus would be composed of species with similar phenotypic and phylogenetic characteristics.

There is 1 question to complete.