This chapter is currently out of syllabus
1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Guard cells help in
A
transpiration
B
guttation
C
fighting against infection
D
protection against grazing
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of
A
weak gravitational pull
B
transpiration pull
C
lignified thick walls
D
cohesion and adhesion.
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure 7 atm and diffusion pressure deficit 3 atm. Cell B has osmotic pressure 8 atm, turgor pressure 3 atm and diffusion pressure deficit 5 atm. The result will be
A
no movement of water
B
equilibrium between the two
C
movement of water from cell A to B
D
movement of water from cell B to A.
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The translocation of organic solutes in sieve tube members is supported by
A
cytoplasmic streaming
B
root pressure and transpiration pull
C
P-proteins
D
mass flow involving a carrier and ATP.
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