1
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Function of companion cells is :
A
Providing water to phloem
B
Loading of sucrose into sieve elements
C
Loading of sucrose into sieve elements by passive transport
D
Providing energy to sieve elements for active transport
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The cork cambium, cork and secondary cortex are collectively called :
A
Periderm
B
Phellem
C
Phellogen
D
Phelloderm
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Ground tissue includes :
A
All tissues external to endodermis
B
Epidermis and cortex
C
All tissues internal to endodermis
D
All tissues except epidermis and vascular bundles
4
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Transport of food material in higher plants takes place through -
A
Sieve elements
B
Transfusion tissue
C
Companion cells
D
Tracheids
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