Important Concepts
Nucleic Acids
RNA: (Single stranded) Reads the information in DNA and transports it to the protein-building apparatus of the cell
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Curriculum Links
B2.3 construct and draw three-dimensional molecular models of important biochemical compounds, including carbohydrates, proteins, lipids, and nucleic acids [PR, C]
B3.2 describe the structure of important biochemical compounds, including carbohydrates, proteins, lipids, and nucleic acids, and explain their function within cells
B3.3 identify common functional groups within biological molecules (e.g., hydroxyl, carbonyl, carboxyl, amino, phosphate), and explain how they contribute to the function of each molecule
B3.2 describe the structure of important biochemical compounds, including carbohydrates, proteins, lipids, and nucleic acids, and explain their function within cells
B3.3 identify common functional groups within biological molecules (e.g., hydroxyl, carbonyl, carboxyl, amino, phosphate), and explain how they contribute to the function of each molecule
Misconceptions
- That a nucleotide and nucleoside both contain a base, pentose sugar and a phosphate group. This is not the case, a nucleotide contains all 3 parts listed above, whereas a nucleoside only contains a nitrogenous base attached to a pentose sugar, with no phosphate group. It is important to show students the difference between the two with images
- Students cannot grasp the double helix structure. The activities below are great at helping students visually see the double stranded helical structure of DNA.
Activities and Teaching Strategies
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Here is another great video which reviews all of the properties of nucleic acids in a fun exciting way.
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Assessment #2
Macromolecule Quiz
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