In article <3o51f4$2l6 at sleipnir.iaccess.com.au>, gideon at iaccess.com.au (GIDEON BAKER) says:
>>I am new to botany and would appreciate if somebody could explain the following:
>>>I understand that plants make agreat variety of compounds from raw materials. Most of biological compounds fall into just four caterories: carbohydrates
>>lipids,proteins and nucleic acids.
>Given that this is correct, does this mean that all these comounds essentially consist of the same elements and are just ISOMERS ?
>>>Please could somebody explain this.