Vocab
The capacity to do work
Energy
The usual form of lost energy
Heat
A molecule that enters a reaction
Reactant
Reactions run straight from reactant to product
Linear Pathway
Diffusion of water across the plasma membrane
Osmosis
Stored Energy
Potential Energy
Source of the energy that fuels most life
The Sun
DOUBLE JEOPARDY
Give a chemical equation and identify the products and reactants
Last step regenerates a reactant for the first step
Cyclic Pathway
Transports molecules against its concentration gradient and requires energy
Energy of Motion
Kinetic Energy
Where energy is stored
Chemical bonds
The minimum amount of energy required to start a chemical reaction
Activation Energy
DOUBLE JEOPARDY
Give an example of a reaction that regenerates a reactant for the first step
Cell expels a vesicle's contents to extracellular fluid
Exocytosis
Spontaneous Spreading of molecules or ions
Diffusion
Reaction that ends with a net release of free energy
Exergonic
Helps a reaction run faster
Enzymes
Point at which a reaction can run without any additional energy input
Transition State
Pressure that a fluid exerts against a structure
Turgor
Measure of how much the energy of a system is dispersed
Entropy
Reaction that requires a net input of free energy to work
Endergonic
Pocket in an enzyme that allows a substrate to bind and carry out a reaction
Active Site
A change that occurs to suppress specific cellular activity when necessary
Feedback Inhibition
High solute relative to another fluid, water flow in
Hypertonic