Tutor profile: Jordan C.
What is meant by "catalysis by approximation?"
Catalysis by approximation is an enzyme catalytic mechanism. In this type of catalysis, an enzyme positions multiple substrates such that they can react with each other. This can speed reaction rates by reducing activation energy.
Subject: Basic Chemistry
What is a dissociation constant?
The dissociation constant (Kd) for a chemical equation describes the tendency of a reactant to dissociate into products. Kd is defined as the concentrations of the products over the reactants at equilibrium.
Describe the difference between prokaryotic and eukaryotic cells.
The main difference between prokaryotic and eukaryotic cells is that eukaryotic cells contain a membrane bound nucleus containing the cells genetic information. In prokaryotes (pro, meaning "before"), genetic material is stored instead in a dense region called the nucleoid.