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Biomolecules - 1

Description: Get Complete study material and notes for Chemistry, Biomolecules, Organic Molecule, Molecules, Amino acids, Nucleotides, Monosaccharides, DNA, RNA, DNA Molecules, RNA Molecules
Number of Questions: 24
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Tags: Chemistry Biomolecules Organic Molecule Molecules Amino acids Nucleotides Monosaccharides DNA RNA DNA Molecules RNA Molecules
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Which of the following is not a carbohydrate?

  1. Acetic acid

  2. Sugar

  3. Starch

  4. Fructose


Correct Option: A
Explanation:

Ans : 1.

Which of the following carbohydrates can not be hydrolysed?

  1. Monosaccharide

  2. Disaccharide

  3. Oligosaccharide

  4. Polysaccharide


Correct Option: A
Explanation:

Ans : 1.

Carbohydrates are stored in human body as

  1. glucose

  2. fructose

  3. glycerol

  4. glycogen


Correct Option: D
Explanation:

Ans : 4.

The sugar in which aldehyde and ketone groups are free is

  1. non-reducing sugar

  2. cane sugar

  3. sucrose

  4. lactose


Correct Option: D
Explanation:

Ans : 4.

What are the expected products of hydrolysis of maltose?

  1. Glucose and sucrose

  2. Two molecules of glucose

  3. Galactose and glucose

  4. Sucrose


Correct Option: B
Explanation:

Ans : 2.

Amylose and amylopectin are the components of

  1. cellulose

  2. sucrose

  3. starch

  4. lactose


Correct Option: C
Explanation:

Ans : 3.

Which evidence suggests that glucose contains an aldehyde group?

  1. It gives D.N.P. test

  2. It gives schiff's test

  3. It forms an oxime

  4. None of the above


Correct Option: C
Explanation:

Ans : 3.

When glucose is treated with bromine water, we get

  1. lactose

  2. gluconic acid

  3. glyceraldehyde

  4. adipic acid


Correct Option: B
Explanation:

Ans : 2.

The forms of monosaccharides which differ only in the configuration of hydroxyl group are called

  1. enantiomers

  2. stereoisomers

  3. anomers

  4. geometrical isomers


Correct Option: C
Explanation:

Ans : 3.

Amino acids which can be synthesised in the body are

  1. all natural amino acids

  2. non - essential amino acids

  3. essential amino acids

  4. none of these


Correct Option: B
Explanation:

Ans : 2.

Which one of the following is a polymer of alpha glucose?

  1. Sugar

  2. Sucrose

  3. Cellulose

  4. Starch


Correct Option: D
Explanation:

Ans : 4.

The cell wall of bacteria and plants is made up of

  1. glycogen

  2. cellulose

  3. amylose

  4. amylopectine


Correct Option: B
Explanation:

Ans : 2.

The structure which remains intact during denaturation of proteins is called

  1. primary

  2. secondary

  3. tertiary

  4. quaternery structure


Correct Option: A
Explanation:

Ans :1.

Which of the following is the example of globular protein?

  1. Myosin

  2. Keratin

  3. Insulin

  4. None of the above


Correct Option: C
Explanation:

Ans : 3.

Which of the following can be synthesised in the body?

  1. HCl

  2. Carbohydrates

  3. Vitamins

  4. Glucose


Correct Option: A
Explanation:

Ans : 1

The water solubility of amino acids is higher than corresponding halo acids because

  1. amino acid is poor in nature

  2. of presence of lone pair of electrons

  3. of hydrogen bonding

  4. like dissolves like


Correct Option: C
Explanation:

Ans : 3.

Which of the following is not a fat soluble vitamin?

  1. A

  2. D

  3. E

  4. None of the above


Correct Option: D
Explanation:

Ans : 4.

Vitamin C can not be stored in the body because

  1. it is water soluble and readily excreted as urine

  2. it is utilised as soon as it is produced

  3. it is fat soluble

  4. none of the above


Correct Option: A
Explanation:

Ans : 1.

Which of the following does not contain phosphoric acid?

  1. Globular Protein

  2. Fibrous Protein

  3. Nucleotide

  4. Nucleoside


Correct Option: D
Explanation:

Ans : 4.

Which of the following vitamins can be stored in our body?

  1. B1

  2. B2

  3. B6

  4. B12


Correct Option: D
Explanation:

Ans : 4.

Haemoglobin is a type of

  1. protein

  2. vitamin

  3. lipid

  4. carbohydrate


Correct Option: A
Explanation:

Ans : 1.

Amino acids are

  1. acids

  2. bases

  3. amphoteric

  4. salts


Correct Option: C
Explanation:

Ans : 3.

A zwitter ion is one which

  1. is positively charged

  2. is negatively charged

  3. is both (1) and (2)

  4. is carbanion

  5. is carbocation


Correct Option: C
Explanation:

Ans : 3.

The coagulation of egg white on boiling is an example of

  1. precipitation

  2. denaturation

  3. oxidation

  4. reduction


Correct Option: B
Explanation:

Ans : 2.

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