CHM ENG 170A Study Guide - Midterm Guide: Immobilized Enzyme, Chemical Engineering, Reaction Rate
8 Jan 2019
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One 8. 5 x 11 in. page of notes allowed. Short answers: name four interactions involved in maintaining the tertiary structure of proteins. Disulfide bonds: define the damkohler number for an immobilized enzyme reaction and explain its physical meaning. Rate: explain why, in physical terms, i << 1 when >> 1. If >>1 then vmax>>kmdeff, hence the system must be transport- limited. Reactant molecules are consumed before they diffuse very far, and the reaction is limited to a thin region near the periphery of the particle. Rna has a hydroxyl group at the 2" carbon of its sugar. Rna uses uracil as one of its base, while dna uses thymine as one of its base. The extra hydroxyl group of rna prevents it from forming a stable double stranded structure, hence rna exists as a single stranded molecule. Some regions of rna can form double helix (hairpin loops) (i. e. secondary structure)
