NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Pleiomorphic bacteria
A
are round
B
are curved
C
are comma shaped
D
vary in shape and size
Explanation: 

Detailed explanation-1: –Thus, Mycoplasma is a genus of bacteria which can be present in different forms and shapes thus are called pleomorphic bacteria.-The different shapes are-like club-shaped, curved, coccoid and filamentous. The most common example that can be considered is the Corynebacterium spp.

Detailed explanation-2: -Pleomorphic Bacteria They can change their shape. In pure cultures, they can be observed to have different shapes. Examples: Mycoplasma pneumoniae, M. genitalium, etc.

Detailed explanation-3: -Pleomorphic bacteria: some bacteria are variable in shape and lack a single, characteristic form. These are called pleomorphic even though they may, like Corynebacterium, have a generally rod-like form.

Detailed explanation-4: -There are three basic shapes of bacteria: coccus, bacillus, and spiral. Based on planes of division, the coccus shape can appear in several distinct arrangements: diplococcus, streptococcus, tetrad, sarcina, and staphylococcus. The bacillus shape can appear as a single bacillus, a streptobacillus, or a coccobacillus.

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