Bactéries
Bactéries are single-celled microorganisms that are found in virtually every environment on Earth. They are prokaryotes, meaning their cells lack a nucleus and other membrane-bound organelles. Bacteria have a wide range of shapes, including spheres (cocci), rods (bacilli), and spirals (spirilla). Their cell walls are typically composed of peptidoglycan, which plays a role in their structure and protection.
Reproduction in bacteria primarily occurs through asexual binary fission, where a single cell divides into two
While many bacteria are known for causing diseases, the vast majority are harmless and even beneficial. Many
Bacterial pathogens can cause a variety of infections, ranging from mild to severe. However, advances in medicine,