KIN 3515 Chapter : Practice Questions
15 Mar 2019
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Membrane - bound structure keeps cells turgid. Initially cytoplasmic (ground substance) was thought to be without structure. Improved techniques showed this to be wrong. The problem - a cell and its environment. The interior of a cell is different than its environment. How to defend the internal environment but still communicate with the external environment. Ion concentrations inside and outside a typical mammalian cell table. Clicker: biological membrane consist of: phospholipids and proteins. Species with a body temperature of 10 c will have fluidity similar to a species with a body temperature of 20 c. Clicker: the fluidity of membranes of 10 c species and a 20 c species are compared at 15 c. Membranes adapted to 10 c or membranes adapted to 20 c. Raised pigs wearing underwear in a hot room. Changed the properties of the subcutaneous fats. Membrane fluidity can acclimate (first ones to demonstrate this) Membrane fluidity adjusted by changing the rate of unsaturated fatty acids.
