| Question |
Answer |
| What is Cell Metabolism? |
the sum of All Chemical Reactions in a cell |
| What determines Reation Direction/Law of Mass Action? |
INCREASES in Reactant --> INCREASES in Product formation |
| What are some of the determinants of Reaction Rates? |
1. Chemical Concentrations of Reactants; 2. Temperature; 3. Activation Energy; 4. Catalysts |
| How does Heat determine Reaction Rates? |
1. provides high impact collisions need to impart Activation Energy |
| What is Activation Energy? |
Kinetic Enregy NECESSARY to start a Chemical Reaction |
| What is the function of Catalysts? |
SPEEDS up Reaction, but is not consumed |
| Whata re Enzymes? |
metabolic Catalysts |
| What are the functions of Enzymes? |
1. SPEED Reactions w/o being altered themselves; 2. DON"T CAUSE Reactions that would otherwise occur |
| What is a Substrate? |
Reactant: any Organic Molecule BOUND To or ACTED on by an Enzyme |
| What is an Enzyme? |
3-Dimensional Protein Catalyst |
| What is an ES-Complex? |
Substrate ADSORBED onto the surface of Enzyme, forming TEMPORARY Chemical Association |
| What is Geometric Specificity? |
one Enzyme reacts with only Specific Substrates |
| What is an Active Site? |
area of an Enzyme molecule that fits the Geometric Configuration of a Specific Substrate |
| What is the basic scheme of Metabolic Reactions? |
Enzyme + Substrate --> <-- ES-Complex --> <-- Products + Enzyme |
| What is the fuction of Enzyme Action? |
LOWERS Activation Energy requirements |
| How does Enzyme Action LOWER Activation Energy? |
1. WEAKENS/distorts existing bonds within a substrate or changes its shape; 2. promtes new bonds by properly ORIENTING 2 Substrates |
Cardio Block2anatomy
