BIOL 1002 : BIOL 1002 Exam 3 Material
Document Summary
Organ systems of flowering plants: stems: support branches, flowers (which become fruits), leaves, etc , baobab trees and cacti have specialized in water storage stems, stolons runners are horizontal, wandering, aboveground stems, rhizomes (are horizontal , belowground stems. Modified leaf structures: aloe vera, their leaves allow them to store water. They are cam plants, meaning that the pores only open up when it is dark outside to prevent water loss: leaves specialized in spines help defend against herbivores. Every step in development requires input from both genes and the environment. Bacteria produce excess ammonium or nitrate for the plant: acquisition of water, osmosis: movement of water from high concentration to low concentration. Myosin: nerve: specialized to generate and conduct electrical signals. Organs: formed from two or more tissue types, different organs have different proportion of tissue types, eg: skin has all 4 tissue types, epidermis: specialized epithelial tissue, dermis: connective tissue, nerve tissue, muscle tissue.
