Since Jiskha doesn't have a biology expert at this time, please try posting your question at this site.
http://www.biology-online.org/biology-forum/
In addition, be sure to make really good use of KhanAcademy!
http://www.khanacademy.org/science/biology
Choose from the general topics at the right and then find the specifics you need within each topic.
How are proteins, lipids, and polysaccharides similar?
A) They contain the same atoms are types of bonds between atoms.
B) They are natural polymers composed of repeating monomeric units.
C) They are formed during exergonic metabolic reactions in a cell.
D) They have characteristics similar to the elements making them up
2 answers
I am not a biologist but A and C are true.