Wilting of plants result from excessive………
a) respiration
b) photosynthesis
c) absorption
d) transpiration
In many thin leaved mesophytes, stomata open during day and close at night. This comes under
a) alphalpha type
b) pea type
c) potato type
d) tomato type
Generally, the number of stomata per square centimeter leaf area is………..
a) in hundred
b) thousand
c) both a, b
d) None of these
Plant die due to wilting when…………..
a) available light is reduced to half
b) xylem is blocked
c) phloem is blocked
d) a few roots are broken
Conversion of starch to organic acid is essential for stomatal…………
a) closure
b) opening
c) initiation
d) growth
The process of the escape of liquid from the tip of injured leaf is called………..
a) evaporation
b) transpiration
c) guttation
d) evapo-transpiration
