Energy - the energy before the conversion is equal to the...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Energy Energy refers to the capacity to move or change matter. Forms of Energy These forms of energy are important to life: chemical radiant heat mechanical electrical nuclear Energy can be transformed from one form to another. Chemical energy is the energy contained in the chemical bonds of molecules. Radiant energy travels in waves and is sometimes called electromagnetic energy. An example is visible light. Photosynthesis converts light energy to chemical energy. Energy that is stored is called potential energy . Laws of Thermodynamics 1 st law- Energy cannot be created or destroyed. Energy cannot be created or destroyed. It can be converted from one form to another. The sum of
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: the energy before the conversion is equal to the sum of the energy after the conversion. 2 nd law- Some usable energy dissipates during transformations and is lost. During changes from one form of energy to another, some usable energy dissipates, usually as heat. The amount of usable energy therefore decreases. ATP (Adenosine Triphosphate) The energy in one glucose molecule is used to produce 36 ATP. ATP has approximately the right amount of energy for most cellular reactions. ATP is produced and used continuously. The entire amount of ATP in an organism is recycled once per minute. Most cells maintain only a few seconds supply of ATP....
View Full Document

Ask a homework question - tutors are online