This chapter is currently out of syllabus
1
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which of the following facilitates opening of stomatal aperture?
A
Decrease in turgidity of guard cells
B
Radial orientation of cellulose microfibrils in the cell wall of guard cells
C
Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells
D
Contraction of outer wall of guard cells
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The water potential of pure water is
A
less than zero
B
more than zero but less than one
C
more than one
D
zero
3
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicates that it is phloem sap?
A
Acidic
B
Alkaline
C
Low refractive index
D
Absence of sugar
4
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
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.
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