the monoterpenes are major constituents of the volatile oils that are
common in plants and which contribute to their aroma. Biosynthesis of volatile oils

The head of one isoprene molecule could link with the tail of another isoprene molecule.(isoprene rule)
This link is called a head-to-tail or 1-4 link

............ is stereo chemically pure compound
while ............. is not.

Glycosides are compounds that yield .......sugars upon hydrolysis.

Glycosides are compounds that yield one or more sugars upon hydrolysis.

The term glycoside is a generic term for synthetic product that is chemically bound to a sugar

Thus the glycoside composes of

ؤAmong the sugars found in natural glycosides, D- glucose is the most abundant one, L rhamnose
and L-fructose also occurs quite frequently.

Among the sugars found in natural glycosides .............. is the most abundant one

The sugar part can be disaccharide

Glycosides can be classified according to the linkage between the sugar moiety
and the aglycon par

The sugar moiety of a glycoside can be joined to the aglycone via

In the nomenclature of glycosides the trivial names have an “ine” ending, and the names
indicate the source of glycoside

digitoxine is glycoside

digitoxin is glycoside

The systematic names are usually formed by replacing the “.......” suffix of the parent
sugar with “........”.

Glycosides that have soap like properties ( physical) are called

glycosides that liberate hydrocyanic acid (HCN) on hydrolysis are known as

Alkaloids Are basic nitrogenous compounds

Alkaloids are often divided into the following