Differentiate how sugars and fats are synthesized and stored in cells?

Question

Also, please give me the details of protein storage in cells...(Emergency!!)

Answer 1

Sugars are broken down to glucose
Fats are broken down to glycerol and fatty acids
Proteins are broken down into amino acids

To be used immediately as fuels:
glucose is converted to pyruvate, then acetyl CoA which is used in the citric acid cycle to produce ATP, water and CO2 (in aerobic conditions)
fatty acids are converted to acetyl CoA and used as above
amino acids are converted to pyruvate then acetyl CoA and used as above

To be stored for later use:
glucose is polymerised as glycogen and stored mainly in liver and muscle cells
fatty acids are converted back to triglycerides and stored mainly in adipose tissue (fat cells)
amino acids are used to make proteins (eg. albumin) and are generally not stored in great quantities in cells

Answer 2

This will be in any biochemistry text book,
try Lehninger
http://www.whfreeman.com/lehninger/

or
principles of biochemistry
David L. Nelson, Michael M. Cox