This chapter is currently out of syllabus
1
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
2
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.
3
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Root pressure develops due to
A
passive absorption
B
active absorption
C
increase in transpiration
D
low osmotic potential in soil.
4
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
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
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