Acetic acid is the starting unit in the biosynthesis of a wide variety of straight chain and aromatic natural compounds

Acetate-Mevalonic acid pathway
It begins with conversion of acetate to

yields acetoacetyl Co A

———-claisen condensation reaction with third molecule of acetyl CoA yields six carbon compound 3-hydroxy-3-methylglutaryl CoA

3-hydroxy-3-methylglutaryl CoA is reduced to mevalonate

Phosphorylation with loss of CO2 and phosphate ion completes synthesis

Isopentyl pyrophosphate is _______with 2-methylallyl pyrophosphate

Geranyl pyrophosphate with one molcules of isopentyl pyrophosphatein the same manner mention previously will give ( _____) atom compound called farnesyl pyrophosphate

10C to 15C then _____ Fpp with the presence of NADPH will give Squalene which direct precursor for steroidal nucleus.

The carbohydrates are defined as

carbohydrates They are substances of universal occurrence and are much abundant in

Carbohydrates are grouped into two major
classes: simple sugars (saccharides) and polysaccharides

Low molecular weight carbohydrates.

The high molecular weight carbohydrates (polymers)

depending upon the chemical structure, saccharides are subdivided as monosaccharides, disaccharides and trisaccharides.