BIOL 1601 Study Guide - Quiz Guide: Lysosome, Broccoli, Bacteriorhodopsin
Document Summary
Light: portion of electromagnetic spectrum that we can see (380 750nm) Made up of photons = packets of energy (shorter wavelengths, photons have higher energy) Light penetration: only 73% penetrates top 10cm and decreases, no light at about 200m (phoic zone) Light, colour and behavior: circadian rhythms (circa = around, diem = day, set by hormone (melatonin, migration, reproduction, germination, sleep cycles, leaves uncurled during day to maximize. Sa for photosynthesis: phototaxis = locomotion towards light (+ towards, - away) eg. fireflies mating, camouflage relationships between plants and their pollinators (flower colour) Atp excites electron in substrate mlc to higher level, when electron returns energy is released as photon of light. Detriments of light: can damage biological molecules, incl. Lumen = interior of organelle: all organisms composed of one or more cells, cell smallest unit of life, cells derived from other cells (cell division, cells carry heritable information, metabolic processes (energy production, etc) occur.
