This chapter is currently out of syllabus
1
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Root pressure develops due to
A
passive absorption
B
active absorption
C
increase in transpiration
D
low osmotic potential in soil.
2
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A column of water within xylem vessels of tall trees does not break under its weight because of
A
lignification of xylem vessels
B
positive root pressure
C
dissolved sugars in water
D
tensile strength of water.
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In a ring girdled plant
A
the shoot and root die together
B
neither root nor shoot will die
C
the shoot dies first
D
the root dies first.
4
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which one gives the most valid and recent explanation for stomatal movement?
A
Starch hydrolysis
B
Guard cell photosynthesis
C
Transpiration
D
Potassium influx and efflux
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