Intro+monosaccharide

Question 1

Non covalent bond

Answer 1

1. Weaker then covalent
2. Determine properties of how molecules interact with water and with each other
3. Hydrogen bond/ionic bond/van der waals/hydrophobic bond

Question 2

Hydrogen bond responsible for (2)

Answer 2

DNA stability and protein folding

Question 3

Ionic bond (2)

Answer 3

1. Between two oppositely charged groups or ions

2. electrostatic interaction or salt bridge

Question 4

Ketone
C7
From glucose

Answer 4

Sedoheptulose

Question 5

Enantiomers (3)

Answer 5

1. mirror image
2. D and L forms
3. D-glucose and L-glucose

Question 6

In case of D-fructose (2)

Answer 6

1.furanose: C5 and C2
Disaccharide and polysaccharide

2.pyranose: C6 and C2
Free in solution

Question 7

3 examples of epimers

Answer 7

1. Glucose and mannose C2
2. Glucose and galactose C4
3. Anomers aldoses at C1 and ketoses at C2

Question 8

L-ascorbic acid (2)

Answer 8

Vitamin c

In animals not humans from glucose

Question 9

Define sugar alcohol

Answer 9

Reduction from carbonyl group to alcohol group

Question 10

Glycerol (2)

Answer 10

1. Alcohol of glyceraldehyde and dihydroxyacetone

2. In most phospholipids

Question 11

Aminosugars(3)

Answer 11

Replacement of hydroxyl group by amino group
On second carbon
Glucosamine galactosamine mannosamine

Question 12

Amino-sugars are important constitutes of (4)

Answer 12

1. glycosaminoglycan GAGs
2. glycoprotein
3. glycolipids
4. antibiotics