Common Monosaccharides

Q. Which of the following is considered the sweetest of all naturally occuring sugars?

1. Fructose
2. Lactose
3. Ribose
4. Maltose

Q. Which amongst the following is a reducing sugar?

1. Galactose
2. Glycogen
3. Sucrose
4. Cellulose

Q. Which of the following is an example of monosaccharide?

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

Q. Which of the following is an aldose sugar?

1. Fructose
2. Glucose
3. Erythrulose
4. Ribulose

Q. Which of the following is a ketose sugar?

1. Fructose
2. Glucose
3. Galactose
4. None of the above

Q. Which of the following is a ketose sugar?

1. Fructose
2. Glucose
3. Galactose
4. None of the above

Q.

Why are glucose, fructose and galactose known as isomers?

1. They all have the same optical property

2. They have the same structural and chemical formula

3. They vary in the arrangement of asymmetric carbons

4. They have the same chemical formula, but vary in the arrangement of atoms in the molecule

Q.

The bond formed between glucose and galactose monosaccharides to produce the disaccharide lactose, is _____.

1. $\alpha$-1, 2- glycosidic bond

2. $\beta$-1, 4- glycosidic bond

3. $\alpha$-1, 4- glycosidic bond

4. $\beta$-1, 2- glycosidic bond

Q. Which of the following is a keto sugar?

1. Glucose
2. Glyceraldehyde
3. Ribose
4. Fructose

Q. Fructose and glucose can be distinguished by:

1. Seliwanoff’s reagent
2. Benedict’s reagent
3. Fehling’s reagent
4. Barfoed’s reagent

Q. Which of the following is fruit sugar?

1. Lactose
2. Fructose
3. Maltose
4. Deoxyribose