Entry Test MCQ :: Biological Molecules

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51.

Hemoglobin molecule exhibits which structural organization of proteins

A.	Primary structure	B.	Secondary structure
C.	Tertiary structure	D.	Quaternary structure

52.

?- helical structure is kept by the formation of _____ bonds among amino acids molecules.

A.	H bonds	B.	Disulphide Bond
C.	Ionic bond	D.	Hydrophobic bonds

53.

Which of the following does not show quaternary structure?

A.	Haemoglobin	B.	Pepsin
C.	Fibrin	D.	Insulin

54.

Which structural organization is most common in globular proteins?

A.	Primary	B.	Secondary
C.	Tertiary	D.	Quaternary

55.

Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong?

A.	Globular proteins	B.	Fibrous Proteins
C.	Both a and b	D.	None of these

56.

Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong?

A.	Globular proteins	B.	Fibrous Proteins
C.	Both a and b	D.	None of these

57.

ATP is a an important molecule for its major function

A.	As an energy currency of the cell	B.	As a coenzyme
C.	Both a and b	D.	None of these

58.

Each turn of DNA contain _______ nitrogenous base pairs

A.	5	B.	10
C.	20	D.	25

59.

The first organism of whose genome was completely discovered was

A.	Human beings	B.	Influenza Virus
C.	Hemophilus Influenza	D.	None of these

60.

Which of the following statement is incorrect about RNA?

A.	The pentose sugar in it is Ribose.	B.	It contains Adenine Guanine Thymine and Cytosine
C.	It is present in the nucleoli	D.	It may be folded back on itself to give double helical characteristics.