A lack of one small molecule can cause scurvy, and one changed base can change a protein. We sort the vitamins by solubility and deficiency, build DNA and RNA from bases, sugars and phosphate, explain the double helix, and meet the hormones.
3 lessons, about 1 h 35 min3 simulations10 problems6 practice questionsPython in every lesson
Created by StemPy LabSailors on long voyages once lost their teeth and bled from the gums, and a few oranges cured them. A vitamin is a small molecule that the body needs in tiny amounts and cannot make for itself. We sort the vitamins by solubility and learn what each one does, and what happens when it is missing.
DNA and RNA look like very long chains, yet they are made from only a few parts. We name the parts, the bases, the sugars and the phosphate, and see how they join into a nucleoside, a nucleotide and a strand.
Two strands of DNA coil round each other, held together by the pairing of the bases. This pairing explains how a cell copies its information. At the end we meet the hormones, the chemical messengers of the body.
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