More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
MDCAT Biology Chapter 3 Biological Molecules Online Test MCQs With Answers
Question # 1
In a phospholipid molecule, phosphoric acid is attached to the carbon number_____ of glycerol.
Choose an answer
1
2
3
4
Previous
Skip
Next
Question # 2
The bond formed between glucose and fructose to form sucrose
Choose an answer
α 1 , 4 Glycosidic bond
β 1 , 4 Glycosidic bond
α 1 , 2 Glycosidic bond
β 1 , 2 Glycosidic bond
Previous
Skip
Next
Question # 3
Glycerol, fatty acids and phosphoric acid give rise to:
Choose an answer
Phospholipid
Phosphatidic acid
Phosphatidyl choline
Phosphatidylethnoline
Previous
Skip
Next
Question # 4
When Fructose form ring structure, It is
Choose an answer
6 Cornered
5 cornered
4 cornered
3 cornered
Previous
Skip
Next
Question # 5
Which of the following does not contain peptide bond
Choose an answer
Hemoglobin
Myoglobin
Insulin
Cutin
Previous
Skip
Next
Question # 6
The compound formed by the combination of a base and a pentose sugar is called:
Choose an answer
Nucleoside
Nucleic acid
Nucleotide
Nuclein
Previous
Skip
Next
Question # 7
F. Sanger was the first scientist who determined the ___ structure of a protein molecule
Choose an answer
Primary
Secondary
Tertiary
Quaternary
Previous
Skip
Next
Question # 8
Chemical formula of pentose sugar present in DNA
Choose an answer
C
5
H
9
O
5
C
5
H
10
O
5
C
5
H
10
O
4
None
Previous
Skip
Next
Question # 9
Which of the following sugar does not form a ring structure in a solution
Choose an answer
Glyceraldehyde
Ribose
Glucose
Fructose
Previous
Skip
Next
Question # 10
In tertiary structure, presence of hydrophilic amino acids at the surface of proteins and hydrophobic amino acids buried inside, indicate
Choose an answer
Nature of bonding
Function of protein
Nature of medium
Shape of protein
Previous
Skip
Next
Question # 11
In deoxyribose, oxygen is removed from carbon number
Choose an answer
1
2
3
4
Previous
Skip
Next
Question # 12
The simplest mono saccharide containing keto group is:
Choose an answer
Glyceraldehyde
Glucose
Dihydroxyacetone
Ribose
Previous
Skip
Next
Question # 13
Which level of protein structure is responsible for maintenance of helix shape of an enzyme
Choose an answer
Primary
Secondary
Tertiary
Quaternary
Previous
Skip
Next
Question # 14
In a phospholipid molecule, fatty acid is attached to the carbon number_____ of glycerol.
Choose an answer
1
2
Both
3
Previous
Skip
Next
Question # 15
How many nitrogen atoms are found in lecithin
Choose an answer
1
2
3
4
Previous
Skip
Next
Question # 16
Which of the following is not a homopolysccharide?
Choose an answer
Starch
Chitin
Pectin
Glycogen
Previous
Skip
Next
Question # 17
Pick up ester bond present in nucleotide
Choose an answer
P-O-C
C-O-C
N-O-C
S-O-C
Previous
Skip
Next
Question # 18
Which of the following reaction is reverse of others
Choose an answer
Hydrolysis
Decondensation
Decomposition
Condensation
Previous
Skip
Next
Question # 19
What is the theoretical number of chemically different dipeptide that can be made from 2 different amino acids
Choose an answer
1
2
4
8
Previous
Skip
Next
Question # 20
______ are important components of brain and plasma membrane:
Choose an answer
Nucleoproteins
Glycolipids
Lipoproteins
Phospholipids
Previous
Skip
Next
Question # 21
Which of the following is correct option
Choose an answer
Nucleoside does not contain phosphate
Nucleotide has three sub-units
Ester bond is present in acylglycerols
All
Previous
Skip
Next
Back