MCDB 21 Study Guide - Midterm Guide: Monosaccharide, Cellulose, Starch
Document Summary
Polysaccharides: name 3 examples of polysaccharides and what their functions are. Hydrophilic heads on the outside with hydrophobic tails on the inside. Hydrophilic head is on the outside because environment is aqueous. Hydrophobic tails don"t like aqueous environments so they concentrate between the heads, acting as a barrier for polar molecules: describe the fluid mosaic model of a cell membrane. Flagella is rotor like smaller: identify the functions of all the organelles labeled in animal and plant cells on slides 27-29. Nucleus directs cell activity & stores hereditary info. Rough er modifies proteins that will be shipped elsewhere. Smooth er makes lipids & detoxifies molecules. Golgi apparatus processes & packages proteins, lipids, etc. Cell wall structural strength & increased resistance to water loss. Not all microbes can be cultured in vitro. Direct: physical contact or body fluids (hiv is transmitted directly) Study of factors affecting health & illness of population.