Classes of Biomolecules - Fairmont State College [PDF]

Classes of Biomolecules In this lab you are going to explore the four classes of biomolecules: amino acids, carbohydrates, nucleotides, and lipids. You will build a few examples of each class of biomolecule using Spartan, and answer questions about the biomolecule. Amino Acids (Peptides) Draw the structures for the following amino acids in your lab notebook, circle and name all functional groups then build the amino acids in Spartan (using Ent. or Exp. palette only). Show you lab instructor each structure before deleting it. Gly

His

Pro

Arg

Ile

Val

Draw the following peptide chains in your lab notebook and list all functional groups present. Now build the following peptides in Spartan (using Pep. Palette). Show your instructor your structure prior to deleting it. Gly-Glu-Gln Arg-Phe-Ala Lys-Trp-Pro Tyr-Ile- Met

Carbohydrates Build the following carbohydrates in Spartan (using Ent. or Exp. palette only) and list all functional groups each carbohydrate contains. Show your instructor your structure prior to deleting it.

Glucose

Sucrose

Nucleotides Build the following nitrogen-containing containing bases in Spartan (using Ent. or Exp. palette only) and list all functional groups. Show your instructor your structure prior to deleting it. A

T

C

G

U

Build the following short DNA sequences in Spartan (using Nuc. palette) and list all functional groups. First select DNA (single strand), then change to DNA and finally use DNA – RNA to show the different configurations the strand assumes under differing conditions. Show your instructor where the H-bonds bonds are located in the double strands prior to deleting it. A-C-T

T-G-C

A-T-C

C-T-A

Lipids Build the following lipids in Spartan and list all functional groups. Show your instructor instru your structure prior to deleting it.

Lecithin

Triglyceride containing palmitic acid, oleic acid, and alpha linolenic acid from top to bottom.