Due to plasmolysis, the plant cell
bursts
swells up
becomes turgid
becomes flaccid
Cork cambium results in the formation of cork, which becomes impermeable to water due to te accumulation of
resins
suberin
lignins
tannins
The osmotic pressure of the cell sap is more in
mesophytes
xerophytes
hydrophytes
halophytes
Which of the following is used to measure the rate of transpiration ?
potometer
porometer
osmometer
osmoscope
Diffusion of dissolved substances through semipermeable membrance is called
dialysis
osmosis
active transport
faciliated diffusion
In a plant cell, shrinking of protoplasm is called
turgidity
flaccidity
plasmolysis
deplasmolysis
Which of the following is not an exchange process?
diffusion
surface tension
The internal factor of transpiration is
oxygen
nitrogen
carbon dioxide
sunken stomata
A widely accepted theory for the ascent of sap is
capillary theory
inbibition theory
negative tension theory
cohesion tension theory
The ultimate cause for the movement of water against gravity in a tree is
imbibition
transpiration
photosynthesis
