1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?

AIPMT 2011 Prelims Biology - Biomolecules Question 66 English
A
B : Adenine    -   A nucleotide that makes up nucleic acids
B
A : Triglyceride    -   Major source of energy
C
B : Uracil    -   A component of DNA
D
A : Lecithin    -    A component of cell membrane
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Three of the following statements about enzymes are correct and one is wrong. Which one is wrong?
A
Enzymes require optimum pH for maximal activity.
B
Enzymes are denaturated at high temperature but in certain exceptional organisms they are effective even at temperatures 80o - 90oC.
C
Enzymes are highly specific.
D
Most enzymes are proteins but some are lipids.
3
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The figure given below shows the conversion of a substate into product by an enzyme. In which one of the four options (a-d) the components of reaction labelled as A, B, C and D are identified correctly?

AIPMT 2010 Mains Biology - Biomolecules Question 64 English
A
A B C D
Potential
energy
Transition
state
Activation
energy
Activation energy
with out enzyme
B
A B C D
Transition
state
Potential
energy
Activation energy
without enzyme
Activation energy
with enzyme
C
A B C D
Potential
energy
Transition
state
Activation energy
with enzyme
Activation energy
without enzyme
D
A B C D
Activation energy
with enzyme
Transition
state
Activation energy
without enzyme
Potential
energy
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Modern detergents contain enzyme preparations of
A
thermoacidophiles
B
thermophiles
C
acidophiles
D
alkaliphiles.
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