BMSC 200 Review Exam Q&A
Chiral Carbons - ANSWER-Has four different substituent attached to it
Construction - ANSWER-Biomolecules often constructed exclusively from one
stereoisomer
Interactions - ANSWER-Interactions between biomolecules, as well as between
biomolecules and small molecules, are stereospecific
Advantages of constructing biologicals as polymers. - ANSWER-Simplicity, recycling
and diversity
Four major classes of biomolecules - ANSWER-Proteins, nucleic acids, lipids,
carbohydrates
In vitro - ANSWER-In glass
In vivo - ANSWER-Living
First law of thermodynamics - ANSWER-In any physical or chemical change, the
total amount of energy in the universe remains constant, although the forms of the
energy may change
Second law of thermodynamics - ANSWER-The tendency in nature is toward ever
greater disorder: the total entropy of the universe is continually increasing
Definition of free energy - ANSWER-G=H-TS
G>0 - ANSWER-Non-spontaneous, need input of free energy to proceed.
Endergonic
G<0 - ANSWER-Spontaneous, releases free energy which can be used to do work,
proceeds until equilibrium is reached. Exergonic
G=0 - ANSWER-System a equilibrium, no change in free energy in the system
Perpetuation of life requires that genetic information be: - ANSWER-sorted in a
stable form, expressed accurately in the form of gene products and reproduced with
minimal error
DNA provides: - ANSWER-instructions for forming all other cellular components and
a template for production of identical DNA molecules to be distributed
Central Dogma - ANSWER-DNA---> RNA---> Protein
Chiral Carbons - ANSWER-Has four different substituent attached to it
Construction - ANSWER-Biomolecules often constructed exclusively from one
stereoisomer
Interactions - ANSWER-Interactions between biomolecules, as well as between
biomolecules and small molecules, are stereospecific
Advantages of constructing biologicals as polymers. - ANSWER-Simplicity, recycling
and diversity
Four major classes of biomolecules - ANSWER-Proteins, nucleic acids, lipids,
carbohydrates
In vitro - ANSWER-In glass
In vivo - ANSWER-Living
First law of thermodynamics - ANSWER-In any physical or chemical change, the
total amount of energy in the universe remains constant, although the forms of the
energy may change
Second law of thermodynamics - ANSWER-The tendency in nature is toward ever
greater disorder: the total entropy of the universe is continually increasing
Definition of free energy - ANSWER-G=H-TS
G>0 - ANSWER-Non-spontaneous, need input of free energy to proceed.
Endergonic
G<0 - ANSWER-Spontaneous, releases free energy which can be used to do work,
proceeds until equilibrium is reached. Exergonic
G=0 - ANSWER-System a equilibrium, no change in free energy in the system
Perpetuation of life requires that genetic information be: - ANSWER-sorted in a
stable form, expressed accurately in the form of gene products and reproduced with
minimal error
DNA provides: - ANSWER-instructions for forming all other cellular components and
a template for production of identical DNA molecules to be distributed
Central Dogma - ANSWER-DNA---> RNA---> Protein
