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2. Cholesterol (pictured below) is an organic molecule produced in all animal cells. It is a component of all cell membranes in animals. Cholesterol is also a precursor molecule in the synthesis of steroid hormones and Vitamin D. FIRST, on the diagram, make sure to label any partial or full charges that would be present. SECOND, in the space provided below, explain whether you think thyroxine would be dissolved in water or not, make sure to clearly explain why or why not. LASTLY, on the diagram of below, indicate where on the molecule water could interact via hydrogen bonds and if water soluble, demonstrate the hydration shell. HO Cholesterol CH₂ CH₂ OH Standard 2 Material 3. Below is a polypeptide with an unknown number of amino acids. (Standard 4) One the diagram below: H₂C H₂C HH a. Circle EVERY peptide bond b. Circle and number each amino acid from 1, 2, 3, and so on; from left to right c. Label each amino acid as polar, non-polar, or electrically charge d. Label the N-terminus and C-terminus CH₂ e. Select three pairs of amino acids that could potentially interact to influence tertiary structure AND state the bond/force/interaction type involved in each pair. CH₂ CH₂ OMU N-C HOHHOHHOHHOH CH₂ SH CH₂ =O -¿- CH, CH₂ CH₂ T NH CH₂ T SH OHN H