Cellular Structures in Bacteria- Overviewo Nucleoid region, ribosomes, macromolecules, cytoplasmo No membrane enclosed organelles! - Ribosomeso Consists of RNA and proteinso Site of protein synthesis o Small than eukaryotic ribosomes Prokaryotic: 70S, Eukaryotic: 80S Important because this is how scientists make drugs that specifically targetprokaryotes and leave our eukaryotic cells alone! Composed of 30s and 50s subunitso Target of antibiotics Example: streptomycin - Nucleoid Regiono Most bacteria only have 1 chromosome Closed, circular, double-stranded DNA Coiled and looped Contains nucleoid proteinso Composed of DNA, RNA, and proteins- Plasmidso Small, circular, nonessential pieces of DNAo Genes on plasmids carry advantages Example: drug resistance o Separate from the chromosomeo Allows exchange of genetic info between different cellso Applications in biotech Example:
View Full Document
Unlocking...