1
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.
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The correct floral formula of soyabean is
A
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 42 English Option 1
B
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 42 English Option 2
C
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 42 English Option 3
D
AIPMT 2010 Mains Biology - Morphology of Flowering Plants Question 42 English Option 4
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 77 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 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Which one of the following is a xerophytic plant in which the stem is modified into the flat green and succulent structure?
A
Opuntia
B
Casuarina
C
Hydrilla
D
Acacia