BIOB38H3 Lecture Notes - Lecture 12: Vascular Bundle, Eudicots, Lignin
Document Summary
Impact on human health: saline groundwater (68% of people have no access to healthy drinking water, dust: highly toxic (salts that are naturally occurring, pesticides for cotton production) Increase in infant mortality (60-100/100,000; in canada, 4. 5/100,000: decreased human fertility, anemia, skin lesions, heart and kidney disease, life expectation of only 51 years. Coconut (cocos nucifera: coconuts are the world"s best-protected seed. One embryo is covered with a shell, water, and flesh to help the offspring: coconut for human consumption is removed and a large mass of coarse fibers are left behind (from the surface of the coconut) Jute: coarse, used to produce string, twine, and carpets. Ramie: a relative of the stinging nettle, only in eastern asia, japan and korea, makes silken, soft strands, hard or leaf fibers: in monocot leaf vascular bundles (sisal, manila hemp", pineapple) Mechanical paper production: wood fibers, fourdrinier paper machine, don"t start from the long botanical fibers!
