1
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
Companion cells are closely associated with
A
Sieve elements
B
Trichomes
C
Vessel elements
D
Guard cells
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
The common bottle cork is a product of
A
Phellogen
B
Xylem
C
Vascular Cambium
D
Dermatogen
3
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Some vascular bundles are described as open because these :
A
are capable of producing secondary xylem and phloem
B
are not surrounded by pericycle
C
possess conjunctive tissue between xylem and phloem
D
are surrounded by pericycle but no endodermis
4
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
NEET Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12