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1

AIPMT 2006

MCQ (Single Correct Answer)
During the process of digestion, the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process-

are respectively
A
invertase and zymase
B
amylase and maltase
C
diastage and lipase
D
pepsin and trypsin

Explanation

2

AIPMT 2006

MCQ (Single Correct Answer)
The human body does not produce
A
enzymes
B
DNA
C
vitamins
D
hormones

Explanation

Vitamins are not produced in human body and they have to be taken from an outside source.
3

AIPMT 2006

MCQ (Single Correct Answer)
Which one of the following is a peptide hormone?
A
Adrenaline
B
Glucagon
C
Testosterone
D
Thyroxine

Explanation

Glucagon is a single chain peptide of 29 amino acids, synthesised by the $$\alpha $$-cells in the islets of Langerhans of the pancreas.
4

AIPMT 2005

MCQ (Single Correct Answer)
Which functional group participates in disulphide bond formation in proteins?
A
Thioester
B
Thioether
C
Thiol
D
Thiolactone

Explanation

Disulphide bond may be reduced to thiol by means of reagents i.e., NaBH4 , which shows the presence of thiol group in disulphide bond formation.

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