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19 Cards in this Set

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Biochemistry

the scientific discipline that seeks to explain life at a molecular level

4 types of molecules

-Nucleic Acids


-Proteins


-Carbs


-Lipids

Amino Acids contain

-(COOH) carboxilic group --> -C OO-


-(NH2) amino group ---> -NH3+





Carbohydrates contain

(CH2O)n

Nucleotides contain

-Five carbon sugar(Ribose)


-Nitrogen containing ring


- one or more phosphate group

Lipid solubility

Highly insoluble because of hydrocarbon like structure

Polymers of Amino Acids are called

Polypeptides or proteins

Amino Acids residues are linked by

Peptide bonds




-C-C---N-C



Benefit of 3D shape of proteins

- Structurally variable


-functionally versatile



Polymers of Nucleotides are called

Polynucleotides or Nucleic acids


AKA


RNA or DNA


-*EACH nucleic acid is made from just four different nucleotides



Nucleotides in RNA

-Adenine


-Cytosine


-Guanine


-Uracil

Nucleotides in DNA

-Adenine


-Cytosine


-guanine


- thymine



Nucleotides are linked by

PHOSPHODIESTER BONDS




link the phosphate and sugar

Function of Polysaccharides

-performe essential cell functions by serving as fuel storage molecules and by providing structural support

Sugar Residues are linked by

Glycosidic Bond


C-H-O-H-C

Spontaneous Reactions

Delta G <0



Exergonic reactions

Delta G <0


spontaneous reactions



Endergonic reactions

Delta G > 0


non-spontaneous reactions

For process to occur, the overall change in free E must be Negative meaning the free E of products must

be less than the free energy of the reactants