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Repetition

Summary of last lecture

Elements Monomer PolymerH, O, C, N, P, S, ---> ~ 20 Amino Acids (AA) ---> proteins

H2O peptidesVan der Waals Interactions

glucose ---> sucrosestarchglycogencellulose

nucleotide ---> DNA, RNA

fatty acids, glycerol ---> Lipids

Amino

Acids

Peptide bond

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SucroseDNA / RNA

CH2

O

PO O

O

CH2CHCH2

OO

C O C O

Phosphate

Glycerol

(a) Structural formula (b) Space-filling model

Fatty acids

(c) Phospholipid symbol

Hyd

roph

obic

tails

Hydrophilichead

Hydrophobictails

–

Hyd

roph

ilic

head

CH2

Choline+N(CH3)3

LipidsEssential Bio-Engineering-related Bio-Molecules

Taking-home message:

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Further important large cellular biomolecules

Energy: ATP

e- carrier: NAD+ & FAD

Cells

Eukaryotic (membrane systems, mitochondria, nucleus , chloroplasts)

Prokaryotic