Chapter 3 Part 1 Flashcards
Catabolic Reactions
Go from having one product to breaking them down into two
Anabolic Reactions
Goes from having two products and combining them into one
Morphologic Reactions
Energy state may change, resulting in a shape change
Kinetic Energy
The energy of motion
How is low KE made?
Moves at a slow rate. Lower forces with Lower Pressures
How is high KE made?
Higher forces against wall and high pressures as well.
Potential Energy
Energy of storage, stored energy.
Examples of Potential Energy
Pulling rubber band and keeping it stretched. Glucose, Chemical Bonds.
Rock Example; what happens when a rock is pushed up hill?
As a rock is pushed uphill, work is performed and the potential energy of the rock increases
Rock Example: What happens when a rock is pushed down a hill?
As the rock rolls downhill, potential energy is converted into kinetic energy
Activation Energy
To activate, they need to be moving and need enough energy to reach activation energy. Bonds are broken and release energy. If AE not reached, no activation occurs
Can a reaction be reversed?
Once a product is made, it can become a reactant. Can thus be reversed to its original form.
Reaction Rate
The speed at which we make products from reactants.
The effect of KE on a reaction rate?
By giving more force, it increases the probability that they’ll find each other. Low KE = Low Reaction Rate
The effect of concentrations on reaction rate?
An increase in the reactants means an increase in reaction rate. Theres a higher chance to run into each other and hit AE.
Catalysts
DO not change AE. Assist and provide some energy themselves.
Important Characteristics of Catalysts (1)
Lower the energy needed from reactants; Lend a hand to help reach AE quicker
Important Characteristics of Catalysts (2)
Speed up reaction rates
Important Characteristics of Catalysts (3)
Doesn’t change the overall reaction (Some reactants –> Some Products)
Important Characteristics of Catalysts (4)
Can be used multiple times!
The predominant catalysts in physiology are ___
enzymes
Enzyme Composition and Naming?
Most enzymes are proteins. Most end with suffix -ase and many are named after what they do.
Enzyme Pieces and the puzzle
They’re active sites on the enzyme where reactants need to perfectly fit into.
Enzyme Mechanism
Enzymes need KE to form the proper shape in order to bond. The Enzymes then are bounded and react and create one uniform product.