Chapter 14, Problem 91CP

Cholesterol ${\text{(C}}_{\text{27}}{\text{H}}_{\text{46}}\text{O)}$ has the following structure:

In such shorthand structures, each point where lines meet represents a carbon atom, and most $\text{H}$ atoms are not shown. Draw the complete structure, showing all carbon and hydrogen atoms. (There will be four bonds to each carbon atom.) Indicate which carbon atoms use ${\text{sp}}^{\text{2}}$ or ${\text{sp}}^3$ hybrid orbitals. Are all carbon atoms in the same plane, as implied by the structure?