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Transport in Plants


Previous Years Questions

MCQ (Single Correct Answer)

The ascent of xylem sap is plants in mainly accomplished by the
NEET 2022 Phase 2
Addition of more solutes in a given solution will:
NEET 2022
Which of the following is not observed during apoplastic pathway?
NEET 2022
Match List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:sol...
NEET 2021
The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early...
NEET 2020 Phase 1
Xylem translocates:
NEET 2019
Stomatal movement is not affected by
NEET 2018
Which of the following facilitates opening of stomatal aperture?
NEET 2017
The water potential of pure water is
NEET 2017
A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Wh...
NEET 2016 Phase 2
Transpiration and root pressure cause water to rise in plants by
AIPMT 2015 Cancelled Paper
Which one gives the most valid and recent explanation for stomatal movement?
AIPMT 2015 Cancelled Paper
In a ring girdled plant
AIPMT 2015 Cancelled Paper
A column of water within xylem vessels of tall trees does not break under its weight because of
AIPMT 2015
Root pressure develops due to
AIPMT 2015
Which of the following criteria does not pertain to facilitated transport?
NEET 2013
In land plants, the guard cells differ from other epidermal cells in having
AIPMT 2011 Prelims
Guttation is the result of
AIPMT 2011 Mains
Given below is the diagram of a stomatal apparatus. In which of the following all the four parts labelled as A, B, C and...
AIPMT 2010 Mains
Guard cells help in
AIPMT 2009
The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap beca...
AIPMT 2008
Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure 7 atm and diffusion pressure defic...
AIPMT 2007
The translocation of organic solutes in sieve tube members is supported by
AIPMT 2006
Potometer works on the principle of
AIPMT 2005
Stomata of a plant open due to
AIPMT 2003
Opening and closing of stomata is due to the
AIPMT 2002
Main functional of lenticel is
AIPMT 2002
Passive absorption of minerals depends on
AIPMT 2001
Glycolate induces opening of stomata in
AIPMT 2001
Loading of phloem is related to
AIPMT 2001
The movement of ions against the concentration gradient will be
AIPMT 2000

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Class 12