SCT I - Carbohydrates and their Derivatives

Question 1

Name all the 3 important monosaccharides

Answer 1

1. Glucose
2. Fructose
3. Galactose

Question 2

Name all the 4 important disaccharides

Answer 2

1. Maltose
2. Isomaltose
3. Sucrose
4. Lactose

Question 3

Name all the 4 important polysaccharides

Answer 3

1. Glycogen
2. Starch
3. Cellulose
4. Chitin

Question 4

What are the derivatives of maltose (di)?

Answer 4

2 glucose molecules

Question 5

What are the derivatives of isomaltose (di)?

Answer 5

α-limit dextrin (two maltoses bonded with α-1,6-glycosidic bonds)

then maltose, which is 2 glucose molecules (linked by α-1,6-glycosidic bond)

Question 6

What are the derivatives of sucrose (di)?

Answer 6

glucose + fructose

Question 7

What are the derivatives of lactose (di) ?

Answer 7

glucose + galactose

Question 8

What are the derivatives of glycogen (poly)?

Answer 8

Polymer of glucose (α-1,4 and α-1,6-glycosidic bonds)

Question 9

What are the derivatives of starch (poly)?

Answer 9

Polymer of glucose (amylose: linear with α-1,4 bonds + amylopectin: branched with both α-1,4 and α-1,6 bonds)

Question 10

What are the derivatives of cellulose (poly)?

Answer 10

Polymer of glucose (β-1,4-glycosidic bonds)