NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How is bacillus shaped?
A
Circles
B
Diamond
C
Star
D
Rod
Explanation: 

Detailed explanation-1: -Bacteria are of several shapes; they can be spherical (cocci), comma-shaped (vibrio), coiled (spirochaetes), etc. Rod-shaped bacteria are termed bacilli. These bacilliform bacteria are found in several taxonomic groups of bacteria. The term Bacillus (genus) includes rod-shaped gram-positive bacteria.

Detailed explanation-2: -Rod-shaped bacteria appear to have two peptidoglycan synthetic complexes, one for cell elongation and another for the formation of the new poles by septation (reviewed in reference 22). The shape of the cell is determined by alternating activation of these two systems.

Detailed explanation-3: -Bacillus species are rod-shaped, endospore-forming aerobic or facultatively anaerobic, Gram-positive bacteria; in some species cultures may turn Gram-negative with age.

Detailed explanation-4: -A bacillus ( PL bacilli), also called a bacilliform bacterium or often just a rod (when the context makes the sense clear), is a rod-shaped bacterium or archaeon. Bacilli are found in many different taxonomic groups of bacteria.

Detailed explanation-5: -Rod-like bacteria maintain their cylindrical shapes with remarkable precision during growth. However, they are also capable to adapt their shapes to external forces and constraints, for example by growing into narrow or curved confinements.

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