BIO 201 Lecture Notes - Lecture 19: Catabolism, Anabolism, Chemotroph

• School: University at Buffalo
• Department: Biological Sciences
• Course: BIO 201
• Professor: Lara Hutson

Document Summary

Life: a state of existence defined by the ability to undergo metabolism, maintain homeostasis, possess a capacity to grow, respond to stimuli, reproduce, and evolve. Undergo metabolism: energy transduction, being able to take energy from outside and transduce it to energy that cells can use. Maintain the homeostasis: maintaining the low entropy state for life. Metabolism : the set of chemical reactions needed to sustain life. Catabolis(cid:373) (cid:894)(cid:862)throw or break dow(cid:374)(cid:863)(cid:895) : the set of cellular reactions used to harvest outside energy and convert it into a useable form: taking energy and harvesting energy. A(cid:374)abolis(cid:373) (cid:894)(cid:862)throw or build up(cid:863)(cid:895) : the set of reactions that produce biological macromolecules and other large molecules needed to sustain life: using the energy to reverse entropy. From catabolism anabolism: provides the energy for anabolism. From anabolism catabolism: builds the macromolecules that make catabolism possible. Source of energy : sunlight: phototroph (photo: light, oxidation of organic compounds: chemotroph (chemo-: chemistry)