3A Energy

Cards (11)

What is chemical energy a form of?
Potential energy
What does the concept of disorder in a system imply?
It implies that systems naturally move towards a state of more disorder
What is the trend of entropy in the universe?
Entropy is always increasing
What is required to create order in a system?
An energy input is needed
What is the relationship between reactants and products in terms of free energy?
Reactants have greater free energy (more order)
Products have less free energy (less order; more stable)
Free energy is released in the process
What is the process of cellular respiration primarily concerned with?
The breakdown of glucose
What is the relationship between reactants and products in cellular respiration?
Reactants have greater free energy (more order)
Products have less free energy (less order)
Free energy input is required for the reaction
What does photosynthesis create?
Glucose
What is the role of the phosphate group in energy reactions?
Phosphate group: PO $_4^{3-}$ (also known as Pi or inorganic phosphate)
Involved in energy transfer reactions
Bonds between phosphate groups store energy
What is the significance of the bonds between phosphate groups?
They store energy
What is the general concept of energy in chemical reactions?
Energy is either released or input during chemical reactions