Cocci is one of the three types of shapes of bacterias: cocci (spherical), bacilli (rod-shaped), and spirella, (spiral-shaped)
Bacterial disease · Coley's Toxins · Exotoxin · Lysogenic cycle
Gut flora · Skin flora · Vaginal flora
Cell membrane
Cell wall: Peptidoglycan (NAM, NAG, DAP)
Gram-positive bacteria only: Teichoic acid · Lipoteichoic acid · Endospore
Gram-negative bacteria only: Bacterial outer membrane (Porin, Lipopolysaccharide) · Periplasmic space