What are bacteria? Explain their structure in detail.
What are bacteria? Explain their structure in detail.
Answered
Bacteria are unicellular microorganisms that lack a defined nucleus and other membrane-bound organelles. Their structure includes: 1. Cell wall: Composed mainly of peptidoglycan, it provides structure and protects against osmotic pressure. 2. Cell membrane: A lipid bilayer controlling the entry and exit of materials. 3. Cytoplasm: The gel-like substance within the cell that houses cellular components. 4. Nucleoid: A region in the cytoplasm containing a single, circular DNA molecule that carries genetic information. 5. Ribosomes: Structures for protein synthesis, scattered throughout the cytoplasm. 6. Flagella: Long, whip-like appendages used for movement. 7. Pili: Short, hair-like structures used for attachment or DNA transfer. Some bacteria also contain plasmids, which are small DNA molecules separate from the chromosome.
BNO Team