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Biomolecules Online MCQs

MCQs On Biomolecules
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Biomolecules Important Questions and Answers

Question 1
On complete hydrolysis of starch, we finally get
A
Glucose
B
Fructose
C
Glucose and fructose
D
Sucrose
Question 2
Which does not show mutarotationSucrose
A
Fructose
B
Sucrose
C
Maltose
D
Glucose
Question 3
Which of the following is a conjugated protein?
A
Glycoprotein
B
Chromoprotein
C
Phosphoprotein
D
All of these
Question 4
The reason for double helical structure of DNA is operation of
A
Hydrogen bonding
B
Dipole-dipole interaction
C
Electrostatic attractions
D
Vander Waal's forces
Question 5
Galactose is converted into glucose in
A
Intestine
B
Liver
C
Mouth
D
Stomach
Question 6
Insulin is
A
A lipid
B
An amino acid
C
Protein
D
A carbohydrate
Question 7
Which amino acid has aromatic ring?
A
Glycine
B
Tyrosine
C
Alamine
D
Lysine
Question 8
The most important food reserves of animals and plants are

Related: s and p Block Elements of Periodic Table

A
Proteins
B
Vitamins
C
Fats
D
Carbohydrates
Question 9
Ascorbic acid is a
A
Carbohydrate
B
Protein
C
Vitamin
D
Enzyme
Question 10
The double helical structure of DNA was proposed by
A
Emil Fischer
B
Khorana
C
Watson and Crick
D
Meicher
Question 11
Glucose gives many reactions of aldehyde, because
A
It is a polyhydroxy ketone
B
It is a cyclic aldehyde
C
It is hydrolysed to acetaldehyde
D
It is a hemiacetal in equilibrium with its aldehyde form in solution
Question 12
The waxes are long chain compounds of fatty acids, which belong to the class of
A
Esters
B
Alcohols
C
Ethers
D
Acetic acid
Question 13
Which of the following is not an amino acid?

Related: introduction to Co-ordination chemistry

A
Glycine
B
Histidine
C
Alanine
D
Benzidine
Question 14
Which one of the following statements is true for protein synthesis (translation)
A
Only one codon codes for an amino acid
B
Every t-RNA molecule has more than one amino acid attachment site
C
Amino acid are directly recognized by m-RNA
D
The third base of the codon is less specific
Question 15
Which is a reducing sugar?
A
Galactose
B
Fructose
C
Glucose
D
All of these
Question 16
Artificial silk is
A
Polyesters
B
Polyamides
C
Polysaccharides
D
Polyacids
Question 17
Vitamin B6 is known as
A
Tocopherol
B
Riboflavin
C
Pyridoxin
D
Thiamine
Question 18
Read the following statements carefully
A
Insulin is a hormone
B
Albumin is a simple protein
C
Muscles contain the protein keratin
D
The amino acid alanine contains an acidic side chain
Question 19
The safest and the most common alternative of sugar is

Related: general organic chemistry Online Test

A
Aspartame
B
Glucose
C
Saccharin
D
Cyclodextrin
Question 20
Which of the following monosaccharide is a pentose?
A
Galactose
B
Fructose
C
Arabinose
D
Glucose
Question 21
Pepsin enzyme hydrolyses
A
Glucose to ethyl alcohol
B
Polysaccharides to monosaccharides
C
Fats to fatty acids
D
Proteins to amino acids
Question 22
A biological catalyst is essentially
A
An amino acid
B
An enzyme
C
A carbohydrate
D
A nitrogen compound
There are 22 questions to complete.
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Vishal Arora

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