CARBOHYDRATES
1. The following is the main aldohexose in the blood:
a) Fructose
b) Mannose
c) Glucose
d) Galactose
e) Alcose
2. Glycogen is:
a) A storage form of carbohydrate in plants
b) A polymer of glucose and fructose
c) A structural polysaccharide
d) Abundant in adipose tissue
e) A branched sugar
3. The following properties are common for both glucose and ribose:
a) Both are aldoses
b) Both are found in DNA and RNA
c) Both are found in disaccharides
d) Both are obtained on hydrolysis of amylopectin
e) Both are ketoses
4. The following is a disaccharide and non-reducing sugar:
a) Lactose
b) Fructose
c) Maltose
d) Sucrose
e) Cellubiose
5. Proteoglycans:
a) Are composed of cellulose and pectin
b) Are the major source of energy for ruminants
c) Act as lubricants in the joints
d) Give a blue color with iodine
e) Are degraded to free glucose in the lumen of the intestine
6. Carbohydrates:
a) Are polyhydroxyaldehydes or ketones
b) Are polyhydroxyphenols
c) Include glucagon
d) Are components of phosphingolipids
e) Circulate in the blood as polymers
, 7. Glycogen is:
a) A storage form of carbohydrate in plants
b) A branched sugar
c) A polymer of glucose
d) A structural polysaccharide
e) Both B and C are correct
8. Benedict's test:
a) Does not differentiate between reducing substances
b) Is not specific for glucose
c) Is positive for ascorbic acid
d) Involves an oxidation-reduction reaction
e) All of the above are correct
9. The following is a structural polymer of glucose:
a) Amylopectin
b) Inulin
c) Amylose
d) Cellulose
e) Mannitol
10. The following properties are common for both D- glucose and D- ribose:
a) Both are reducing sugars
b) Form intramolecular hemiacetal bonds
c) Both are aldoses
d) A, B and C are correct
e) A is the only correct answer
11. The following are non-reducing sugars:
a) Glucose and sucrose
b) Fructose and Trehalose
c) Maltose and Lactose
d) Sucrose and Trehalose
e) Lactose and Ribose
12. Cellulose:
a) Is a major constituent of the plant framework
b) Is the major source of energy in humans
c) Is a polymer of N-acetyl glucosamine
d) Is made up of glucose units attached by alpha 1,4 glycosidic link
e) Can be degraded to free glucose in humans
13. Glycosaminoglycans:
a) Are bacterial and structural polysaccharides
b) Include chondriotin sulphate
c) Are membrane glycolipids
d) Are polymers of glucose
e) Are the major dietary carbohydrates
1. The following is the main aldohexose in the blood:
a) Fructose
b) Mannose
c) Glucose
d) Galactose
e) Alcose
2. Glycogen is:
a) A storage form of carbohydrate in plants
b) A polymer of glucose and fructose
c) A structural polysaccharide
d) Abundant in adipose tissue
e) A branched sugar
3. The following properties are common for both glucose and ribose:
a) Both are aldoses
b) Both are found in DNA and RNA
c) Both are found in disaccharides
d) Both are obtained on hydrolysis of amylopectin
e) Both are ketoses
4. The following is a disaccharide and non-reducing sugar:
a) Lactose
b) Fructose
c) Maltose
d) Sucrose
e) Cellubiose
5. Proteoglycans:
a) Are composed of cellulose and pectin
b) Are the major source of energy for ruminants
c) Act as lubricants in the joints
d) Give a blue color with iodine
e) Are degraded to free glucose in the lumen of the intestine
6. Carbohydrates:
a) Are polyhydroxyaldehydes or ketones
b) Are polyhydroxyphenols
c) Include glucagon
d) Are components of phosphingolipids
e) Circulate in the blood as polymers
, 7. Glycogen is:
a) A storage form of carbohydrate in plants
b) A branched sugar
c) A polymer of glucose
d) A structural polysaccharide
e) Both B and C are correct
8. Benedict's test:
a) Does not differentiate between reducing substances
b) Is not specific for glucose
c) Is positive for ascorbic acid
d) Involves an oxidation-reduction reaction
e) All of the above are correct
9. The following is a structural polymer of glucose:
a) Amylopectin
b) Inulin
c) Amylose
d) Cellulose
e) Mannitol
10. The following properties are common for both D- glucose and D- ribose:
a) Both are reducing sugars
b) Form intramolecular hemiacetal bonds
c) Both are aldoses
d) A, B and C are correct
e) A is the only correct answer
11. The following are non-reducing sugars:
a) Glucose and sucrose
b) Fructose and Trehalose
c) Maltose and Lactose
d) Sucrose and Trehalose
e) Lactose and Ribose
12. Cellulose:
a) Is a major constituent of the plant framework
b) Is the major source of energy in humans
c) Is a polymer of N-acetyl glucosamine
d) Is made up of glucose units attached by alpha 1,4 glycosidic link
e) Can be degraded to free glucose in humans
13. Glycosaminoglycans:
a) Are bacterial and structural polysaccharides
b) Include chondriotin sulphate
c) Are membrane glycolipids
d) Are polymers of glucose
e) Are the major dietary carbohydrates
