NEW
Font size
WorksheetsPlant water relations
Total questions: 15
Worksheet time: 3mins
In plants, water is essential for .......
Growth
Translocation of solutes
Metabolic activities
All of these
Diffusion pressure is directly proportional to .......
Concentration
Temperature
Both a and b
None of these
During osmosis, water molecules move from .......
Low concentration to high concentration
High concentration to low concentration
Both a and b
None of these
When the seeds placed in water, they swell up because of .......
Osmosis
Diffusion
Plasmolysis
Imbibition
The shrinking protoplasm of a plant cell is called .......
Flaccidity
Turgidity
Plasmolysis
Permeability
Xylem conducts sap from .......
Root to leaves
Stem to leaves
Leaves to root
Stem to root
Cohesion theory is related to .......
Translocation of solutes
Mineral salt absorption
Ascent of sap
Transpiration
Transpiration pull theory was proposed by .......
Godlewski and Bose
Stocking and Priestley
Boehm and Jolly
Dixon and Jolly
In the absence of root pressure, ascent of sap ......
Continues
Stops
Reverse
Forward
In water molecule oxygen molecule is attached to two hydrogen atoms by
Hydrogen Bond
Covalent Bond
Phosphate Bond
Oxygen Bond
Free energy per mole of a substance is called
Chemical Potential
Water Potential
Both
None of the above
In extreme water stress condition, water potential becomes
MORE NEGATIVE
MORE POSITIVE
NO CHANGE
ZERO
ADSORPTION OF THE WATER MOLECULES ON SOLID SURFACE WITHOUT MAKING A SOLUTION IS CALLED
IMBIBITION
OSMOSIS
DIFFUSION
PLASMOLYSIS
A HYPERTONIC SOLUTION IS THAT SOLUTION WHICH
LOSES WATER
GAINS WATER
NEITHER GAINS NOR LOSES
ALL
A & B are two adjacent plant cells. Cell A has an OP = 14 atm and TP = 7 atm, whereas cell B has OP = 10 atm and TP = 2 atm. The flow of water will be
A to B
B to A
