1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Passage cells are thin-walled cells found in:-
A
Endodermis of roots facilitating rapid transport of water from cortex to pericycle
B
Testa of seeds to enable emergence of growing embryonic axis during seed germination.
C
Phloem elements that serve as entry points for substances for transport to other plant parts
D
Central region of style through which the pollen tube grows towards the ovary.
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A genetically engineered micro-organism used successfully in bioremediation of oil spills is a species of-
A
Trichoderma
B
Xanthomonas
C
Bacillus
D
Pseudomonas
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Geometric representation of age structure is a characteristic of :-
A
Biotic community
B
Landscape
C
Ecosystem
D
Population
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Which one of the following ecosystem types has the highest annual net primary productivity ?
A
Temperate evergreen forest
B
Temperate deciduous forest
C
Tropical rain forest
D
Tropical deciduous forest