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Carbohydrates, DNA, Fats and Proteins
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Biochemistry—Carbohydrates, DNA, Fats and Proteins, continued
Determining Protein Concentration—
Student Laboratory Kit
By: The Flinn Staff
Proteins represent the most diverse class of biological compounds within cells. Students quantify the amount of proteins in a sample using a simple color test based on reaction of the protein’s polypeptide backbone with copper ions. Plotting the absorbance of light at maxi- mum wavelength versus the concentration of a set of standards gives a straight-line graph. Students then measure absorbance of a sample with an unknown concentration and determine the amount of protein.
Complete for 10 student groups. A colorimeter or spectrophotometer is required but not included.
Amino Acid Starter Kit
Students use this kinesthetic kit to investigate the atomic structure of the 20 amino acids. Atomic structure is what gives each amino acid its acidic, basic, hydrophobic, hydrophilic and cysteine chemical proper- ties. That influence the primary, secondary and tertiary structure of the protein. By actually folding hydrophobic sidechains inward and hydro- philic sidechains outward, students experience the laws that govern protein folding. Multiple kits can be combined together to model secondary and tertiary structure. Each set includes a magnetic chemical properties circle, an amino acid sidechains list, 22 amino acids, a 4-foot Mini-Toober, 15 metal clips and 6 hydrogen bond connectors.
Amino Acid Collection
A complete “sampler” collection of the 20 naturally
occuring amino acids—alanine, arginine, aspartic
acid, asparagine, cysteine, glycine, glutamic acid, glutamine, histidine, isoleucine, leucine, methionine, lysine, phenylalanine, serine, threo- nine, tryptophan, tyrosine, valine and cystine. 1 g each.
Amino Acid Chromatography—
Student Laboratory Kit
By: The Flinn Staff
Visualize the properties of amino acids using paper chromatography! The properties of amino acids—acidic or basic, polar or nonpolar, ionic or neutral—are enormously important. They dictate protein structure and enzyme catalytic activity. This kit separates a mixture of eight amino acids and identify an unknown based on rate of migration during paper chromatography. Colorless amino acids are detected by spraying with ninhydrin after elution with a special chromatography solvent. Students discover that all amino acids are different and identify the least polar and most polar amino acids. Add a fresh biological perspective to traditional chromatography experiments. Includes reproducible student handouts, complete Instructor’s Notes and all consumable supplies required.
Complete for 30 students working in pairs.
The Alpha-Helix Model Kit
The perfect model to help students visualize the
alpha-helix structure of polypeptide chains. The
chain ascends counterclockwise forming a helix. Each set contains enough components to make 15 peptide linkages. The set includes:
• 30 carbon • 30 hydrogen • 15 oxygen
• 15 nitrogen • 15 Group “R” • 75 links
All materials, including assembly instructions, a link remover tool, and a stand, come supplied in a plastic storage case.
Determining Protein Concentration—Student Laboratory Kit FB1974
Amino Acid Starter Kit FB1946
Catalog No.
Description
Price/Each
FB1974
Determining Protein Concentration— Student Laboratory Kit
$58.15
Catalog No.
Description
Price/Each
FB1946
Amino Acid Starter Kit
$77.55
Catalog No.
Description
Price/Each
AP7238
Amino Acid Collection, 20 x 1 g
$84.80
Amino Acid Collection, 20 x 1 g AP7238
Catalog No.
Description
Price/Each
AP7199
Amino Acid Chromatography—Student Laboratory Kit
$87.80
The Alpha-Helix Model Kit AP6584
Catalog No.
Description
Price/Each
AP6584
The Alpha-Helix Model Kit
$66.35