In the diagram given below showing the pathway of water movement in the root, A, B, C and D respectively represent:
     

1.	Symplastic pathway, Apoplastic pathway, Phloem and Xylem
2.	Apoplastic pathway, Symplastic pathway, Phloem and Xylem
3.	Symplastic pathway, Apoplastic pathway, Xylem and Phloem
4.	Apoplastic pathway, Symplastic pathway, Xylem and Phloem

Water channels are made up of 

1. Eight aquaporins 

2. Eight different types of aquaporins 

3 .Ten aquaporins 

4. Ten different types of aquaporins 

 Water 

Which one is wrong for Water. 

1. Provides a medium in which different substances are dissolved 

2. Makes 92% part of watermelon 

3. Makes 30-45% part of most herbaceous plants 

4. Present in dry seeds as well 

Transpiration 

1. Loss of water in soil 

2. Loss of minerals in soil 

3. Loss of water to the air from the leaves 

4. Loss of organic substances because of photorespiration 

 A mature corn plant absorbs…….. of water in a day while a mustard plant absorbs water equal to its own weight in about…….. 

1. 5L, 3 hours 

2. 3L, 5 hours 

3. 5L, 5 hours 

4. 3L, 3 hours 

Water is often a major limiting factor in

1. Photosynthesis

2. Respiration

3. Photorespiration

4. Plant Growth and Productivity

Water molecules show a motion

Water potential is not

1. Denoted by Greek symbol psi

2. Expressed in pressure units such as Pascals (Pa)

3. At standard temperature not under any pressure, is taken zero

4. Always negative or zero

Find the correct one.

1. All the solutions have lower water potential than pure water given that solution is under external pressure.

2. All the solutions have lower water potential than pure water.

3. All the solutions have higher water potential than pure water.

4. All the solutions have lower water potential than pure water unless the solution is under such external pressure which is more than the solute potential.

In plant cell

1. Solute potential is contributed by cytoplasm

2. Solute potential is contributed by cytoplasm and as well as vacuolar sap

3. Solute potential is because of vacuolar sap only

4. Solute potential is caused by nucleoplasm