ASSIGNMENT BIOCHEM 1

Muhammad Jamil Bin Mohamed Shafi ( BMS15091540 )

Proteoglycans
Synthesis of proteoglycans starts with the attachment of a sugar to (-OH) group of a Serine.
True OR false ………………………………………………………………………..
Gal-transferase iii is one of the enzymes that involved in the synthesis of Chondroitin Sulphate.
True or false ………………………………………………………………………….
Keratan sulphate found in the cornea and it is heterogenous state
True or false …………………………………………………………………………

Collagen and Elastin
Collagen used in cosmetic surgery and burns surgery because it is responsible for skin straightening.
True or false …………………………………………………………………
Elastin makes the cell to resume original shape after being stretched.
True or false …………………………………………………………………
Elastin makes up hair, nails and the surface layer of the skin.
True or false ………………………………………………………………..

Carbohydrates
Aldose sugar is when second carbon is carbonyl.
True or false …………………………………………………………………
d-galactose is commonly found in fruits, vegetables and honey
true or false …………………………………………………………………
Test for starch is Iodine test and benedict test
True or false ………………………………………………………………





Carbohydrates
Select false statement
Aldose sugars are
I D-Glyceraldehydes
II D-Glucose
III D-Mannose
IV D-Gulose
V D-ribulose
Carbohydrates are
I The energy for most dead cells
II Glucose is source
III In animals energy stored as glycogen.
IV In plants the energy stored as cellulose
V carbon, hydrogen and oxygen in 1:2:1 ratio
Ketose sugars are
I D-ribulose
II Dihydroxyacetone
III D-fructose
IV D-erythrulose
V D-Talose