Bacteria play a critical role in maintaining the planet's balance:
Scientists use a Gram stain to classify them. Gram-positive bacteria have a thick peptidoglycan layer that retains purple dye, while Gram-negative bacteria have a thinner layer and an outer membrane, appearing pink. bacterium
Bacteria are generally categorized by their shape and the composition of their cell walls: Bacteria play a critical role in maintaining the
Bacteria reproduce asexually through , a process where a single cell duplicates its DNA and splits into two identical daughter cells. Under optimal conditions, some species can double their population every 20 minutes. They can also exchange DNA through conjugation , which allows for the rapid spread of traits like antibiotic resistance. 3. Ecological and Industrial Importance Under optimal conditions, some species can double their
In the food industry, bacteria are used to produce yogurt, cheese, pickles, and sauerkraut.
Common forms include cocci (spherical), bacilli (rod-shaped), and spirilla (spiral).