NEET BIOLOGY

Detailed explanation-1: -Bacteria are classified by shape into three primary groups: cocci, bacilli, and spiral-shaped. The cocci are round, the bacilli are rods, and the spiral-shaped bacteria are either rigid (spirilla) or flexible (spirochetes). These three primary bacteria shapes determine the bacteria’s morphological characteristics.

Detailed explanation-2: -Bacteria are classified into five groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes).

Detailed explanation-3: -Bacteria are classified according to their shape, or morphology. Spherical bacteria are known as cocci, rod-shaped bacteria are bacilli, and spiral-shaped bacteria are spirilla. Some bacteria can produce resistant forms, called spores, that make treatment difficult.

Detailed explanation-4: -The three basic shapes of bacteria are bacillus (rod-shaped), coccus (spherical-shaped), and spirillum (spiral-shaped).

Detailed explanation-5: -Solution : Bacteria are grouped under four categories based on their shapes: the spherical coccus (pl.: cocci), the rod-shaped bacillus (pl.: bacilli), the comma-shaped vibrium (pl.: vibrio) and the spiral shaped (pl.: spirilla).