BIOL 2101 Lecture Notes - Lecture 3: Chlorophyll, Endocrinology, Cyanobacteria

• School: University of Windsor
• Department: Biological Sciences
• Course: BIOL 2101
• Professor: mennil

Document Summary

Important process is that energy flows through them, from sun and picked up from autotrophs. Complemented by other process (nutrient cycling, next lecture) All the nitrogen on earth is here right now. Study of how energy is fixed by autotrophs, how it is transferred to heterotrophs, and how it is stored in ecosystems for variable amount of time. Carbon is nutrient but is critical to how energy flows through ecosystems. E(cid:272)os(cid:455)ste(cid:373)s a(cid:396)e ope(cid:374) that (cid:396)e(cid:395)ui(cid:396)e (cid:272)o(cid:374)sta(cid:374)t flu(cid:454) f(cid:396)o(cid:373) the su(cid:374), sola(cid:396) (cid:396)adiatio(cid:374) is (cid:862)the sou(cid:396)(cid:272)e(cid:863) of e(cid:374)e(cid:396)g(cid:455) Solar energy streams in at constant rate to earth, all ecosystems require it, except for some ecosystems when the sun is blocked (very rare, like the dinosaurs going extinct) Solar radiation is the most important source of energy: textbook uses the words flow through system (require energy, comes into ecosystems, goes through them, and leaves. Electromagnetic spectrum, height from one peak to the next, shortest are gamma.