MCDB 310 Study Guide - Comprehensive Final Exam Guide - Protein, Enzyme, Covalent Bond

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Biochemistry is the study of the molecules that function in very specific ways to sustain life; explores how chemistry relates to the biology of keeping cells alive. C, h, o, n four most abundant elements in cells because they are versatile and can react/associate i(cid:374) (cid:862)r(cid:863) groups. Functional groups are transferred within or between molecules to regulate cellular activity. Factors that control and affect cellular activity in biological systems: ph, temperature, barometric pressure, concentration of chemicals and reactants/products, available energy. Biomolecules are major molecular groups (lipids/proteins/nucleic acids/carbohydrates) [high energy compounds] that are abundant and essential for life. All amino acids can be charged @ some point, all have a carboxyl and amino groups. I. e. 2 cysteines can make a disulfide bond! Non-polar molecules act totally differently from polar molecules in cells and need to be treated differently. Stereoisomers are 2 molecules with the same bond order but with different spatial arrangements. Stereochemical fit of biomolecules underlies most biochemical interactions.

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