TRANSPORT IN PLANTS biology MCQ’s questions answers

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TRANSPORT IN PLANTS

Question 46 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Accumulation of which one of the following acids results in closure of stomata ..... [AMU 2011]
A
Malic acid
B
Aspartic acid
C
PEP
D
OAA
Question 47 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Transpiration and root pressure cause water to rise in plants by : ..... [AIPMT 2015]
A
pushing and pulling it, respectively
B
pulling it upward
C
pulling and pushing it, respectively
D
pushing it upward
Question 48 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is not related to transpiration pull ..... [MHT 2010]
A
Capillarity
B
Adhesion
C
Cohesion
D
Ascent of sap
Question 49 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The loss of water cuticle reaches up to ..... [AMU 1997]
A
5%
B
10%
C
20%
D
40 %
Question 50 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A cell increases in volume if the external medium is ..... [CPMT 2007]
A
Hypotonic
B
Hypertonic
C
Isotonic
D
None of the above
There are 50 questions to complete.