This collection contains 25 structure models showing the four major types of biochemicals: carbohydrates, fatty acids, nucleic acids (or nucleotides), and proteins (or amino acids). Worksheets and eight unlabeled structures give students a chance to practice identifying these four groups of macromolecules. Two worksheets can accompany this investigation:
- DNA structure and identifying nucleotides
- Investigating biochemicals.
Another interactive way to practice identifying biochemicals is for students to play a game like Go Fish, or Solitaire with Biochemi™ cards. Learn more.
carbohydrates, and peptides.
Structures in the collection
| Type | Description | Download structure |
|---|---|---|
| An MW Collection |
 Examples of sugars, fatty acids, nucleotides, amino acids, and larger macromolecules like protein, DNA, and tRNA. To view the collection, you will need to download and install the iPad version of Molecule World. Once Molecule World is installed on your iPad, return to this page and download the entire collection at once by selecting the mwc file. |
 biochemicals6.mwc |
| PubChem |
 Glucose, a sugar made by photosynthesis. |
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| PubChem |
 Sucrose is a sugar. It's a disaccharide because it contains two subunits. |
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| PubChem |
 Amylose–a polymer of D-glucose and a component of starch |
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| PubChem |
 Butyric acid is a short chain fatty acid. |
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| PubChem |
 Oleic acid is a fatty acid. |
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| PubChem |
 Palmitic acid is a long-chain fatty acid. |
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| PubChem |
 ATP or Adenosine Triphosphate is used for storing energy. |
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| PubChem |
 dATP or deoxy Adenosine Triphosphate is a nucleotide. The deoxy form of the ribose is the form that's found in DNA. |
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| PubChem |
 TTP or Thymidine Triphosphate is a nucleotide. The thymine base is used in DNA in place of uracil. |
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| PubChem |
 dCTP or deoxy Cytidine Triphosphate is a nucleotide. The deoxy form of the ribose is the form that's found in DNA. |
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| PubChem |
 dGTP or deoxy Guanosine Triphosphate is a nucleotide. The deoxy form of the ribose is the form that's found in DNA. |
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| PubChem |
 UTP or Uracil Triphosphate is a nucleotide. Uracil is found in RNA instead of Thymine. |
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| PubChem |
 L-methionine, an amino acid |
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| PubChem |
 L-glutamic acid, an amino acid |
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| PDB |
 A scorpion neurotoxin. Hydrogens are present because this structure was solved by NMR |
1CHL.pdb.gz |
| MMDB |
 This structure is a tRNA that specifies phenylalanine. |
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| MMDB |
 A short chain of double-stranded DNA showing hydrogens. Hydrogens are present because this structure was solved by NMR. |
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| PubChem |
 Unknown 1 |
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| MMDB |
Unknown 2 |
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| PubChem |
Unknown 3 |
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| MMDB |
Unknown 4 |
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| PDB |
Unknown 5 |
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| PDB |
Unknown 5 |
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| PubChem |
Unknown 6 |
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| PubChem |
Unknown 7 |
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| PubChem |
Unknown 8 |