NEET BIOLOGY

Detailed explanation-1: -bacillus, (genus Bacillus), any of a genus of rod-shaped, gram-positive, aerobic or (under some conditions) anaerobic bacteria widely found in soil and water. The term bacillus has been applied in a general sense to all cylindrical or rodlike bacteria.

Detailed explanation-2: -Bacillus species are rod-shaped, endospore-forming aerobic or facultatively anaerobic, Gram-positive bacteria; in some species cultures may turn Gram-negative with age. The many species of the genus exhibit a wide range of physiologic abilities that allow them to live in every natural environment.

Detailed explanation-3: -Prokaryotic cells are typically shaped as either spheres (called cocci), rods (called bacilli), or spirals.

Detailed explanation-4: -Examples of rod-shaped bacteria include Bacillus anthracis (B. anthracis), or anthrax. Spiral: These are known as spirilla (singular spirillus). If their coil is very tight they are known as spirochetes.