Flow Of Energy Flashcards
1
Q
Explain flow of energy
A
Cells are governed by the laws of physics and chemistry
2
Q
Explain energy
A
2 states
Kinetic (energy of motion)
Potential (stored energy)
3
Q
Where does energy come from
A
Energy comes from the sun but never returns to it
Just changes form
4
Q
Explain redox reactions
A
Oxidation (atom or molecule loses an electron)
Reduction (atom or molecule gains and electron)
5
Q
First law of thermodynamics
A
Energy cannot be created or destroyed
Can only change form
Total energy amount remains the same
6
Q
Second law of thermodynamics
A
Entropy (disorder) is always increasing
7
Q
Explain endergonic reaction
A
Energy must be applied to start reaction
8
Q
Explain exergonic reaction
A
Energy is released
Little energy must be applied tho
