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Ch. 8 Vocab
Term | Definition |
---|---|
energy | ability to work |
thermodynamics | study of the flow and transformation of energy |
first law of thermodynamics | the idea that energy cannot be created or destroyed |
second law of thermodynamics | spontaneous increase in disorder, or entropy |
metabolism | all the chemical reactions in a cell |
photosynthesis | anabolic pathway that converts energy from the Sun to chemical energy for use by cells |
cellular respitory | catabolic pathway that breaks down organic molecules |
metabolic pathway | series of chemical reactions in which the product of one reaction is the substrate for the next reaction |
adenosine triphosphate (ATP) | biological molecule that provides chemical energy |
sunlight | source of nearly all energy for life |