TRANSPORT IN PLANTS biology MCQ’s questions answers

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TRANSPORT IN PLANTS

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Stomata open when guard cells swell due to ..... [Odisha 2011]
A
Decreased water potential
B
Increased water potential
C
Endosmosis by efflux of K+ ions
D
Endosmosis by influx of hydrogen ions
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Guttation is the process of elimination of water from plants through ..... [JIPMER 2005]
A
Stomata
B
Hydathodes
C
Lenticels
D
Wounds
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Stomata close in response to ..... [AMU 2003]
A
Hot dry weather
B
Abscisic acid
C
Cytokinin
D
Both a and b
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Water exudation through hydathodes is ..... [BHU 2000]
A
Guttation
B
Transpiration
C
Hydrolysis
D
Excretion
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What will be the effect of accumulation of K+ ions in guard cells ..... [Guj CET 2007]
A
Loss of turgidity
B
Water potential decreases
C
Exosmosis
D
Water potential increases
There are 5 questions to complete.

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