Can anyone help me with this?

1) Pinene
2) Cholesterol
3) Testosterone
4) Retinal
5) Cocaine

For each compound, I have to answers the following questions:
a) Identify the organism that produces it
b) Identify the structural class of its small unit precursor which is the first reactant in the biosynthetic pathway pathway (example: amino acid, isoprene, organic carboxylic acid)
c) Identify the type of biosynthesis pathway as template or nontemplate
d) The intended purpose of natural product
e) The mechanism of action on target if known
f) what humans use the natural product for

It would be greatly appreciated if someone would help me.

Thank you,
Jenisha