1. Rapid rise of minerals
2. Rapid ascent of sap
3. Cooling of plants
4. Loss of surplus water
Rapid ascent of sap
1. Red light
2. Blue and red light
3. Green light
4. Yellow light
Blue and red light
1. Ψ =0 and hence Ψs = Ψw
2. Ψa = 0
3. Ψp = Ψw
4. Ψp = -Ψs and Ψw = 0
Ψp = -Ψs and Ψw = 0
1. At noon
2. In the early morning
3. In the evening
4. Only during night
Only during night
1. Fails to revive at all
2. Revives if soil is watered
3. Revives if kept in saturated atmosphere
4. Revives when it is fanned
Fails to revive at all
1. The high boiling point of water
2. Exclusion of air molecules from the sap solution
3. The vapour pressure of water
4. Attraction between water molecules
Attraction between water molecules
1. Water moves in a tree by the root pressure mechanism
2. Water moves in a tree by a transpiration cohesion mechanism
3. Xylem is primarily responsible for conducting water from the roots to the leaves
4. Phloem is primarily responsible for conducting organic solutes
Xylem is primarily responsible for conducting water from the roots to the leaves
1. ψx
2. Δψ
3. ΨP
4. ψS
ψS
1. The flow of solvent molecules from a region of higher concentration to a region of higher concentration to a region of lower concentration through a semipermeable membrane
2. The flow of low concentration liquid
3. The flow of solvent molecules from a higher concentration to a lower concentration region
4. The flow of solvent molecules from a lower concentration to a higher concentration region
The flow of solvent molecules from a region of higher concentration to a region of higher concentration to a region of lower concentration through a semipermeable membrane
1. Active transport
2. Facilitated diffusion
3. Osmosis
4. Diffusion
Active transport