Biolchem 415: Lec. 1

Proteins, carbohydrates, nucleic acids, lipids

Polymers built from amino acid monomers.

Signal molecules, receptors, catalysts, structural building blocks, motors

Proteins folding specific 3-D shapes which are important for functionality

Fuel source

Glycogen: branched polymer of glucose

Signal molecules--cells present carbohydrates on their surface for recognition

Monomers called nucleotides

To store and transmit genetic information

Enzymes, structural, signaling

True

DNA and RNA

• Describes the flow of genetic information
• 

DNA makes RNA which makes protein

DNA is copied each time a cell divides into two new cells

DNA is transcribed into an RNA copy

The information in RNA is translated into proteins

DNA polymerase

Creates new polymers of DNA by joining 2'deoxynucleotides.

Yes

RNA polymerase

Creates polymers of RNA from nucleotides

The RNA nucleotide sequence specifies the amino acid sequence of the protein being translated

Ribosomes