Advertisements
Advertisements
प्रश्न
Define carbohydrates.
Advertisements
उत्तर
Carbohydrates are optically active polyhydroxy aldehydes or polyhydroxy ketones or compounds that can be hydrolysed to polyhydroxy aldehydes or polyhydroxy ketones.
APPEARS IN
संबंधित प्रश्न
Glucose on oxidation with dilute nitric acid gives _______________
Draw the structure of α-D glucopyranose.
Classify the following carbohydrates into monosaccharide, disaccharide, oligosaccharide and polysaccharide:
glucose, cellulose, maltose, stachyose
Explain the classification of carbohydrates with examples.
What is the action of the following reagents on glucose?
hydrogen iodide
Draw the Haworth projection structure of the following.
α-D-(–)-Fructofuranose
Write a chemical reaction to convert glucose into glucose cyanohydrin.
Identify the bond that links the carbon of two adjacent monosaccharides.
Identify the substances having glycosidic bond and peptide bond, respectively in their structure:
Which enzymes would work sequentially on potatoes consumed by an individual?
Which of the following monosaccharides is a tetrose sugar?
Which of the following is the basic unit of carbohydrates?
Which of the following carbohydrate is sweet to taste?
Formation of lactose by conden ation results in the release of how many molecules of water?
The reserve food material in animals is ____________.
Fructose is the fruit sugar and chemically it is ketohexose but it has a ______ rather than a ______.
Chitin is a/an ______.
Identify the CORRECT combination.
Which among the following type of linkages is present in cellulose?
All these carbohydrates contain \[\ce{1 -> 4β}\] glycosidic linkage, EXCEPT ____________.
Which of the following monosaccharide is a ketohexose?
Which one of the following is an oligosaccharide?
The general formula for polysaccharide is ____________.
Which one of the following is a carbohydrate but does NOT follow the general formula of carbohydrate?
Which one of the following sugar does NOT have same empirical fonnula as that of carbohydrate?
On hydrolysis sucrose gives ____________.
Identify the product Y in the following reaction.
\[\ce{Maltose ->[Hydrolysis] X ->[dil. HNO3][(excess)] Y}\]
Which among the following is a product of hydrolysis of one mole raffinose?
What is the product obtained when Br2 water reacts with glucose?
When one mole of lactose is hydrolysed, the hydrolysate contains ____________.
How many hydroxyl groups are present in Erythrulose?
Which among the following observations suggests that glucose also exists in cyclic form?
How many optical isomers are possible for a compound having four asymmetric carbon atoms?
The correct corresponding order of names of four aldoses with configuration given below Respectively is:
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Starch
Which of the following groups contain polysaccharides?
Lactose is made of ______.
Match the Column I with Column II and choose the correct answer from options below:
| Column I | Column II |
| A. Purine | 1. Glycogen |
| B. Pyrimidine | 2. Cellulose |
| C. Structural polysaccharide | 3. Glucagon |
| D. Storage polysaccharide | 4. Adenine |
| 5. Cytosine |
Identify the monosaccharide containing only one asymmetric carbon atom in its molecule.
Starch and cellulose are compounds made up of many units of ______.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active.
Write Fischer projection formulae for glucose.
Write the ring structure of glucose.
Why carbohydrates are generally optically active.
CH2 OH - CO - (CHOH)4 - CH2 OH is an example of ______.
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active?
Given below are two statements.
Statement I - Lactose on hydrolysis converts into glucose and galactose.
Statement II - Galactose also plays same role as glucose in respiration.
In light of the above statements, select the correct option given below.
