Monosaccharides

Q.

Write short notes on reducing and non-reducing sugars.

Q.

The number of chiral carbon in glucose is

Q.

Why is nutrition necessary for the human body?

Q.

‘Minerals and vitamins are needed in very small quantities by our body as compared to other components, yet, they are an important part of a balanced diet. Explain the statement.

Q.

Where does lactic acid fermentation occur in the body?

Q.

Choose the correct combinations of the monosaccharides forming disaccharides.
i. Glucose + Glucose = Maltose ii. Glucose + Fructose = Lactose

iii. Glucose + Fructose = Sucrose iv. Glucose + Galactose = Lactose

1. (ii) only

2. (i), (iii), (iv)only

3. All of the above

4. (i), (ii), (iii) only

Q.

What is the difference between Maltose and Lactose?

Q.

Cellulose is made up of repeating units of __.

Q. Food items shown below are the major source of energy as they are rich in __________.

1. vitamins
2. minerals
3. proteins
4. carbohydrates

Q.

Choose the correct combinations of the monosaccharides forming disaccharides.

i. Glucose + Glucose = Maltose ii. Glucose + Fructose = Lactose

iii. Glucose + Fructose = Sucrose iv. Glucose + Galactose = Lactose

1. (i), (ii), (iii) only

2. (i), (iii), (iv)only

3. (ii) only

4. All of the above

Q.

Match List-I with List-II.

List-II	List-II
a. Sucrose	i. b-D-Galactose and b-D-Glucose
b. Lactose	ii. a-D-Glucose and b-D-Fructose
c. Maltose	iii. a-D- Glucose and a-D-Glucose

Choose the correct answer from the options given below:

1. (a)-(iii), (b)-(ii), (c)-(i)

2. (a)-(iii), (b)-(i), (c)-(ii)

3. (a)-(i), (b)-(iii), (c)-(ii)

4. (a)-(ii), (b)-(i), (c)-(iii)

Q.

Match list-I with List-II

Column 1	Column 2
Lucas method	${\mathrm{H}}_2{\mathrm{SO}}_4$
Dumas method	${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{SO}}_2\mathrm{Cl}/\mathrm{aq}.\mathrm{KOH}$
kjeldalhs method	$\mathrm{CuO}/{\mathrm{CO}}_2$
Hinsberg test	$\mathrm{Conc}\mathrm{HCl}$ and ${\mathrm{ZnCl}}_2$

Q.

Give two examples each of the following and their usefulness, if any, in our body.

(i) Monosaccharides

(ii) Disaccharides

(iii) Polysaccharides

Q.

The sugar present in nucleotides is a

1. Monosaccharide

2. Oligosaccharide

3. Polysaccharide

4. Disaccharide

Q.

Which one of the following pairs of nutrients includes both as simple sugars (monosaccharides) ?

(a) Sucrose and glucose

(b) Glucose and maltose

(c) Fructose and glucose

(d) Maltose and lactose

Q.

Which of the following statements is not true with respect to carbohydrates?

1. Starch is a type of carbohydrate.

2. Carbohydrates include sugars, starch, cellulose, etc.

3. In carbohydrates, the ratio of hydrogen and oxygen is 1:2

4. Carbohydrates are compounds of carbon, hydrogen and oxygen.

Q.

What is the difference between proteins and enzymes?

Q. Name the three major constituents of balanced diet with two examples for each.
[3 MARKS]

Q.

Which of the following is a simple sugar or monosaccharide?

1. Galactose

2. Lactose

3. Maltose

4. sucrose

Q.

Write any two activities which require more than a bucket of water?

Q.

What is an example of lactic acid fermentation?

Q.

Look at the given figure. All of them provide energy to our body. They can be sources rich in which component of food?

​​

1. Carbohydrate

2. Protein

3. Mineral

4. Vitamin

Q.

The minimum number of Carbon atoms that should be present in a monosaccharide is :

1. 2

2. 3

3. 4

4. 5

Q.

Give the chemical tests to distinguish between the following gases:

Sulphur dioxide and chlorine

Q. Muscle fatigue is due to increased _______ production.

1. uric acid
2. lactic acid
3. formic acid
4. HCL

Q. Many smaller nucleotides join together to form:

1. Ribose
2. Amino acids
3. Nucleic acids
4. Nitrogenous bases

Q. Human body requires carbohydrates mainly:

1. For obtaining vitamins
2. As a source of energy
3. For building muscles
4. For all its development needs

Q.

Which of the following is NOT a monosacharide?

1. Glucose

2. Fructose

3. Galactose

4. Maltose

Q.

What fruits are simple carbs?

Q.

What is difference between nucleotide and nucleoside??