What are the differences between bacteria,fungi,virus & parasite?
Bacteria -Prokaryote, No nucleus -Cell wall and membrane (Gram Neg have two membranes sandwiching peptidoglycan and polysaccharide tails outside, Gram Pos have a cell membrane and a peptidoglycan cell wall and acid fast have lots of mycolic acids which make them tricky to stain) -Most primitive of the 4 -Decomposing and homeostatic functions in life Fungi -Eukaryote -Cell wall of chitin (plant walls are cellulose) -Has organelles -Decomposing function in life Virus -Non organism, must have host cell to propogate (reproduce itself) by using the cells genetic machinery for itself to create more little baby Virus’s -Has a capsid, not a cell wall.. made of protein -Has tail pins and its own DNA or RNA Parasite -Must have have a host organism to survive, not just a cell -Are usually of the animal kingdom or protist kingdom, and usually eukaryotic -Usually causes harm to host, but not always -Examples: Plasmodium in Malaria, fleas, ticks, tapeworms ..
