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?
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
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen through the process of symbiotic nitrogen fixation. which one of the following statements is not correct during this process of nitrogen fixation?
A
Leghaemoglobin scavenges oxygen and is pinkish in colour.
B
Nodules act as sites for nitrogen fixation.
C
The enzyme nitrogenase catalyses the conversion of atmospheric N2 to NH3
D
Nitrogenase is insensitive to oxygen.
3
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Study the cycle shown below and select the option which gives correct words for all the four blanks A, B, C and D.
A
A
B
C
D
Nitrification
Ammoni fication
Animals
Plants
B
A
B
C
D
Denitrification
Ammoni fication
Plants
Animals
C
A
B
C
D
Nitrification
Denitrification
Animals
Plants
D
A
B
C
D
Denitrification
Nitrification
Plants
Animals
4
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Read the following four statements, (i), (ii), (iii) and (iv) and select the right opening having both correct statement.
Statements : (i) Z scheme of light reaction takes place in presence of PSI only.
(ii) Only PSI is functional in cyclic photophosphorylation.
(iii) Cyclic photophosphorylation results into synthesis of ATP and NADPH2.
(iv) Stroma lamellae lack PSII as well as NADP.
