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Energy Flow in the Life of a Cell
Destinations
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Without the energy that filters from the sun throughout photosynthetic pathways and ultimately into each cell of the human body, no essential cellular functions would proceed. But how exactly does this energy reach the cells where it is needed and how is it stored for rapid access? These Web sites address these issues. 1) What Is Energy?
- Thermodynamics
This site offers a nice overview of the fundamentals of thermodynamics. It has many links to other sites detailing the flow of energy in reversible and irreversible chemical reactions.
- Chemical Kinetics
This site gives details of the kinetics involved in chemical reactions. There are also a number of embedded links supporting much of the detailing in this site.2) How Does Energy Flow in Chemical Reactions?
- Melting and Mixing
This animation shows the two ways that entropy can be increased, mixing and melting. It takes a while to download, but it is worth it.3) How Is Energy Carried Between Coupled Reactions?
- ATP
This site provides a description of the role of ATP in cellular chemistry and also provides a brief animation of ATP in a cell.4) How Do Cells Control Their Metabolic Reactions?
- Body Temperature
If human body temperature is 98.6oF, why aren't we the most comfortable in that environment? This site explains how heat transfer provides the answer.
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