Biology 2483A Study Guide - Crassulacean Acid Metabolism, Optimal Foraging Theory, Vascular Bundle

• School: Western University
• Department: Biology
• Course: Biology 2483A
• Professor: Hugh Henry

Document Summary

Autotroph- energy from sunlight (photosynthesis) or from inorganic compounds (chemosynthesis) Convert energy to chemical energy in bonds of organic molecules. Heterotroph- energy from consuming organic compounds originating from autotrophs. Parasites & herbivores- consume live hosts (not necessarily kill them) Holoparasites- plants with no photosynthetic pigment, get e. from other plants (e. g wrap around) Hemiparasite- photosynthetic, but gets water, nutrients & some e. from another plant. Sea slugs- get e. from separated functional chloroplasts from algae they eat. Photosynthesis- e. from sunlight to take up co2 & make organic compounds (most avail e. on earth) Chemosynthesis- e. from inorganic compounds used to make carbs. Important in nutrient cycling bacteria & hydrothermal vents. Light rxn: light used to split h2o & provide electrons to make atp & nadph. Dark rxn: co2 fixed into carbs (calvin cycle) Plants acclimatize to low light by shifting the light curve; morphological & physiological change.