Pro & Eu cell

• Prokaryotic Cell
• No meiosis; transfer of DNA only
• Mesosome functions as mitochondria
• Duration of Cell Cycle: Short (20 - 60 minutes)
• Cell type: Mostly unicellular
• Cell Wall: Simple
• Pathogenic organisms have the potential to produce significant clinical disease in humans
• Acellular organisms possess single nucleic acid either DNA or RNA
• Primarily infect bacteria
• Prokaryotic microorganisms are typically a few micrometres in length
• Gram negative bacteria have a cell wall (e.g., E. coli)
• Gram positive bacteria have a cell wall (e.g., S. aureus)
• Acid-fast bacteria have a lipid cell wall (e.g., M. tuberculosis)
• Eukaryotic Cell
• Meiosis is present
• Duration of Cell Cycle: Long (12 - 24 hrs)
• Cell type: Multicellular
• Cell Wall: Complex
• Normal flora are microorganisms that live on another living organism without causing disease
• Viruses are acellular and unable to replicate without the host cell
• Viruses are obligate intracellular parasites
• Fungi are eukaryotic organisms that include yeasts, molds, and mushrooms
• Fungi are mainly decomposers
• Fungi have an outer surface made up of chitin
• Fungi are aerobic heterotrophs
• Fungi reproduce through sexual/asexual spores
• Protozoa
• Eukaryotic
• Exist in 2 forms: cysts & trophozoites
• Cysts are the infective stage
• Trophozoites are the pathogenic stage
• Protozoa have both DNA and RNA
• Algae
• Outer surface consists of cellulose
• Algae are plant-like organisms due to the presence of chlorophyll (photosynthesis)
• Algae are mostly beneficial and serve as sources of food, iodine, fertilizers, emulsifiers, stabilizers