Biology 11 Chapter - 2
Biological Molecules - 26
1.
The sequence of amino acids in protein is highly specific for?
a) Proper releasing
b) Proper functioning
c) Proper bonding
d) Proper making of chain
2.
In a primary structure amino acids are joined by?
a) Polypeptide bond
b) Hydrogen bond
c) Polypeptide chain
d) Polypeptide linkage
3.
Which one of the following is the example of primary structure protein?
a) Insulin
b) Myosin
c) myoglobin
d) Hemoglobin
4.
The proteins are constructed by a polypeptide chains of 21 & 30 amino acids in?
a) Myosin
b) Insulin
c) Hemoglobin
d) Myoglobin
5.
Who was able to determine the structural difference between normal hemoglobin & sick cell hemoglobin?
a) Robert hook
b) Vernon Ingram
c) Robert brown
d) Robert boyle
6.
Normal hemoglobin contains negatively charged glutamate at?
a) 5th position
b) 8th position
c) 7th position
d) 6th position
7.
The glutamate in sickle cell hemoglobin is replaced by?
a) Non polar hislidine
b) Non polar threonine
c) Non polar valine
d) Non polar leucine
8.
Which type of is affected with person in sickle cell trait?
a) both are incorrect
b) β(beta) chain
c) α(alpha) chain
d) both are correct
9.
In which disease, the red blood cell are not biconcave discs like normal red blood cell?
a) Sickle tissue disease
b) Sickle heart disease
c) Sickle organ disease
d) Sickle cell disease
10.
How many types of polypeptide chains are contain by hemoglobin?
a) Five
b) three
c) Two
d) Four
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