Final answer:
All Enterics are classified as gram-negative rod-shaped bacteria.
Step-by-step explanation:
All Enterics are classified as gram-negative rod shaped bacteria.
The term gram-negative refers to the results of a Gram stain, a technique used to categorize bacteria based on their cell wall composition. Gram-negative bacteria have a thin peptidoglycan layer in their cell walls that does not retain the crystal violet dye used in the staining process, resulting in a pink or red color. In contrast, gram-positive bacteria have a thick peptidoglycan layer that retains the dye and appears purple or blue.
Enteric bacteria belong to the Family Enterobacteriaceae and are characterized by their ability to grow in the intestinal tracts of humans and animals. They include well-known genera such as Escherichia coli, Salmonella, and Enterobacter. These bacteria play important roles in digestion and can also cause various infections.