BIOL 111 Lecture Notes - Lysosome, Lysis, Antimicrobial Resistance
Document Summary
7. 1 human diseases, cell structures and disease-causing agents. Learning outcomes: categorize diseases by their causes, identify basic cell structure and understand their relevance to diseases and pathogens, distinguish among bacteria, viruses and eukaryotic cells and different pathogens. Disease abnormal condition(s) of an organism that impair its normal bodily functions. Diseases can be caused by external or internal factors. Internal: poor nutrition e. g. , rickets, scurvy, spinal bifida, genetic or internal dysfunction e. g. , huntington"s, muscular dystrophy, autoimmune diseases, and some forms of cancer. Toxins (e. g. , 2nd hand smoke (cancer), heavy metals (lead poisoning) Infectious agents: microbes (pathogens) = disease causing organisms, bacteria (e. g. , bird flu, cholera, plague, tuberculosis, protists (e. g. , malaria, lyme disease, dysentery, viruses (e. g. , flu, sars, west nile, aids, smallpox, polio, prions (infectious proteins) e. g. , mad cow disease. This led to disease transmission from animals to humans. (e. g. , Rabies, influenza: we began domesticating and cultivating plants for food crops.
