[bioiskillingme]

Could anyone help me with these? I keep getting these wrong and getting partial credit...would love full credit by the time I finish this homework

1) What element is not used to classify carbohydrates?
A) Insaturations in the carbon backbone
B) # of carbons
C) The presence of isomers
D) The presence of aldehyde or ketone groups in the C1 or C2
I chose C and got it wrong...

2) In this question there are several correct answers...What are the properties of carbohydrates?
a) Are polyalcohols but contain a carbonyl group       
b) Contain only C, H and O   
c) Can be synthesized with water and carbon       
d) Monosaccharydes contains between 4-9 carbons    
e) Can produce polysaccharydes by glycosidic bonds      
f) The carbon backbone is saturated   
I chose b, d, e.

3) The cellulose is a [-----] non [-----] composed by [-----] linked by [-----]. That make possible that cellulose adopts a [-----] structure that is [-----] by a lot of hydrogen bonds.
Fill in with [linear], [polysaccharide], [beta-D-glucose], [beta 1-4 bonds], [branched], [stabilized].

4) Match:
The most important component of glycoproteins is...
The function of proteoglucans is...
Glycoproteins are classified according the...

with:

be the main component of extracelular matrix of conective tissue
the protein
way of be linked the carbohydrate to the protein

5) Match:

Is a branched polysaccharide found in animals   
Is a polysaccharide non-branched present in plants
Is a branched polysaccharide found in plants
Starch
Glycogen and amilopectine

with:

Are produced by alfa 1-4 and alfa 1-6 glycosidic bonds   
amilopectine   
amilose   
amilopectine   
 Is composed by amilose and amilopectine

[bioiskillingme]

I figured out number 4 and 5, so never mind about those!