Biology 2601A/B Lecture Notes - Lecture 3: Mechanical Energy, Basal Metabolic Rate, Peristalsis
10 Dec 2016
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Document Summary
Autotrophs make food from sunlight plants grab sunlight, transform into energy. Heterotrophs use the food to do work beavers eat that tree. Food (chemical bond energy) + o2 work + heat + co2. Mitochondria inside the cell demand energy, must supply it with chemical energy. Atp is the main currency in the cell: Homeotherms and endotherms consume more fuel than ectotherms. Chemical stored in chemical bonds; may be released or required when. Electrical gradients (separation of positive and negative charges) Mechanical energy of organized motion (blood flow, moving limbs) Heat molecular kinetic energy; energy of random motion of atoms/molecules. Need food when we are small and not growing haven(cid:495)t reached terminal size waters scrapes away at algae (algae is an autotroph) and takes the energy of it to. Energy is so important to animals because they are organized organization is important for development getting from a four-cell stage to an adult.
