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CARBOHYDRATES
1
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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
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The following is a disaccharide and non-reducing sugar:
a) Lactose
b) Fructose
c) Maltose
d) Sucrose
e) Cellubiose
5
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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
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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
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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
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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
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Carbohydrates:
a) Are polyhydroxyaldehydes and acetone
b) Are polyhydroxyketones
c) Include glycoproteins
d) Are components of glycerophospholipids
e) Are components of lecithin
15
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Which of the following statements is true of glucose?
a) It is ketoaldose
b) It is found in DNA and RNA
c) It is part of the disaccharide sucrose
d) It is obtained on hydrolysis of galacesylceramide
e) It is constituent of globular proteins
17
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Which of the following can be synthesized from glucose in the human body:
a) Ribose
b) Lactose
c) Sucrose
d) Cellulose
e) Both A and B are correct
19
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The following are aldohexoses:
a) Fructose and galactose
b) Mannose and fructose
c) Glucose and galactose
d) Galactose and ribose
e) Maltose and glucose

21
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Benedict's test:
a) Is positive for ascorbic acid
b) Involves an oxidation-reduction reaction
c) Does not differentiate between reducing substances
d) Is specific for glucose
e) All of the above are correct
23
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The following properties are common for both D-glucose and D-ribose:
a) Are reducing sugars
b) Form intramolecular hemiacetal bonds
c) Have functional groups that can form glycosidic linkages
d) Are aldoses
e) All of the above are correct
25
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Glycosaminoglycans:
a) Are highly hydrophobic
b) Have a cushioning function
c) Contain abundant negative charges
d) Act as enzymes
e) Are the same as glycoproteins
27
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Glycoproteins:
a) Contain more protein than carbohydrates
b) Act as receptors
c) Contain N-linked and/or O-linked oligiosaccharides
d) Act as enzymes
e) Are space occupying



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