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17 Cards in this Set
- Front
- Back
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_____ deals with thermodynamics, enzymes and kinetics. it is the energy transformation that occurs in living organisms. |
bioenergetics |
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What is law 1 of thermodynamics? |
that energy cant be created nor destroyed. it can only be changed. |
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what is law 2 of thermodynamics? |
When an energy change does occur, energy flows from higher energy level, to lower energy level. These levels are based off their level of disorder or randomness known as entropy. |
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Law 1 and 2 of thermodynamics refers to the entropy of the universe or the entropy of the system? |
the universe |
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in a ___________, it can be either open or closed. Meaning energy can enter/leave or all energy remains as is within. |
system |
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_____ system's include earth, a cell, or an organism. |
open |
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________ system's include the universe. |
closed |
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__________ system's are more successful because as higher energy enters, low energy leaves. |
open |
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higher energy intake for earth is through what resource? Earth exert's low energy out be releasing what? |
sunlight heat |
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higher energy intake for organisms is through what resource? organisms low energy out is exerted through what? |
food intake waste output |
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what thermodynamics law indicates that closed systems will eventually die off because they don't get any benefit from low energy? |
law 2 of thermodynamics |
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what are the three processes organisms are able to do because they use energy to do work? |
mechanical chemical active transport |
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what is mechanical energy? |
motor proteins use energy to do work by moving vesicles |
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what is chemical energy? |
the cell building a protein out of amino acids |
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what is ATP hydrolysis? |
it is the breaking down of ATP into ADP+P. adenine tri-phosphate breaks down into Adenine di- phosphate and an inorganic phosphate group. |
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Why does ATP hydrolysis provide ample amounts of energy? |
breaking the bonds of ATP releases free energy. This free energy is used to do work. |
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Why is ATP hydrolysis still considered to be not quite 100% efficient? |
it folllows law 2 of thermodynamics because ADP+P is at a lower energy level than ATP |
