MCRO 251 Lecture Notes - Lecture 3: Plasmolysis, Cell Wall, Pentamer
Document Summary
One cocci is one organism but usually appear as two (staphylococci: grape-like clusters) (chain of cocci: diplococcus) (packet) Transport proteins in the bilayer transport nutrients in and out. Only water and gases can pass through the membrane. Water flows in - membrane swells and cell wall holds everything firmly in place so it wont kill bacteria. If you put it in a hypotonic solution (very salty) it will cause the bacteria"s water to flow out, the membrane pulls away from cell wall, the bacteria has become inert, plasmolysis, vegetative state-when it has swelled again. Halophiles - bacteria that can exist in extremely salty conditions such as on the skin or in the sea on the skin or in the sea. Lyphilization - remove water from bacteria and sell it as medication, they can survive the acidity of your gut. Probiotic - bacteria that helps with digestive movement, already in your stomach.
