Please enable JavaScript.
Coggle requires JavaScript to display documents.
Metabolism (Enzymes (Enzymes speeds up metabolic reactions by reducing…
Metabolism
Enzymes
-
Def: Macromolecules that act as a catalyst, speeding up chemical reaction without being consumed by the reaction.
-
The reactant an enzyme works on is called a "Substrate." When they bind, forms "enzyme-substrate complex."
The part of the enzyme that binds to the substrate is called the "active site." Only specific substrates can bind.
-
Enzymes are proteins, and proteins are sensitive to their environment such as temperature and pH
Cofactors are nonprotein helpers for catalytic activity. if they are organic, they are more specifically known as "coenzymes"
Competitive inhibitors block substrates from entering active sites. Noncompetitive inhibitors impede enzymatic activity by binding to non-active sites, changing the enzyme's shape.
-
Cooperativity: The binding of one substrate molecule to a multisubunit enzyme, triggering a shape change in all subunits, increasing catalytic activity.
Feedback Inhibition: Metabolic pathway is halted by the inhibitory binding of its end product to an enzyme that acts early in the pathway.
Thermodynamics
-
-
Gibbs Free Energy
:G: The portion of a system's energy that can perform work when temperature and pressure are uniform throughout the system.
Entropy
:S: Measure of molecular disorder, or randomness. More random = More Entropy
-
-
-
-
-
-
-
-
Definition: The totality of an organisms chemical reactions, consisting of anabolic and catabolic reactions