Advertisements
Advertisements
प्रश्न
Structure of a disaccharide formed by glucose and fructose is given below. Identify anomeric carbon atoms in monosaccharide units.
पर्याय
‘a’ carbon of glucose and ‘a’ carbon of fructose.
‘a’ carbon of glucose and ‘e’ carbon of fructose.
‘a’ carbon of glucose and ‘b’ carbon of fructose.
‘f’ carbon of glucose and ‘f ’ carbon of fructose.
Advertisements
उत्तर
‘a’ carbon of glucose and ‘b’ carbon of fructose.
Explanation:
Carbon adjacent to oxygen atom in the cyclic structure of glucose or fructose is known as anomeric carbon. As shown in the structure above ‘a’ and ‘b’ are present at adjacent to oxygen atom. Both carbons differ in configurations of the hydroxyl group.
APPEARS IN
संबंधित प्रश्न
What are the expected products of hydrolysis of lactose?
Write two main functions of carbohydrates in plants.
The number of primary and secondary hydroxyl groups in ribose are -
(a) 1, 3
(b) 2, 3
(c) 3, 1
(d) 3, 2
Which of the following gives a positive Fehling solution test?
Which of the following monosaccharide is pentose?
Monosaccharides usually contains ____________ carbon atoms.
Glucose can’t be classified as ____________.
Which of the following reagent cannot distinguish between glucose and fructose?
The pair of compounds in which both the compounds give the positive test with Tollen’s reagent is:
Three cyclic structures of monosaccharides are given below which of these are anomers.
| (I) |  |
| (II) |  |
| (III) |  |
Which of the following monosaccharides are present as five membered cyclic structure (furanose structure)?
(i) Ribose
(ii) Glucose
(iii) Fructose
(iv) Galactose
Monosaccharides contain carbonyl group hence are classified, as aldose or ketose. The number of carbon atoms present in the monosaccharide molecule are also considered for classification. In which class of monosaccharide will you place fructose?
What are glycosidic linkages? In which type of biomolecules are they present?
Which monosaccharide units are present in starch, cellulose and glucose and which linkages link these units?
Assertion: Deoxyribose, \[\ce{C5H10O4}\] is not a carbohydrate.
Reason: Carbohydrates are hydrates of carbon so compounds which follow \[\ce{C_x(H2O)_y}\] formula are carbohydrates.
Account for the following:
Glucose is a reducing sugar
Reagent X is:
