Answer:
Step-by-step explanation:
All bacteria are haploid structures; they can trap iron using siderophores, and can also perform fermentation processes.
Gram-positive bacteria appear violet because they absorb cresyl violet stain.
Gram-negative bacteria appear red because they absorb safranin stain.
Cell wall of bacteria is mainly made up of peptidoglycan:
Gram positive: It is thick with extensive cross-linking.
Gram negative: It is thin with minimal cross-linking.