A cell is placed in 0.4 M solution of sugar and no change in volume of cell is found. What is the concentration of the cell sap?

1. 40 M

2. 4 M

3. 0.4 M

4. 0.20 M

In mycorrhiza, fungal filaments help in 

1. Water absorption

2. Food translocation

3. Developing tension in xylem

4. Development of root pressure

Select the incorrect about apoplast pathway.

1. It is faster than symplast

2. Little resistance in the movement of water

3. Consists of living parts of the plant body

4. Water moves through cell walls and intercellular spaces

How many properties are associated with active transport?

a. Requires special membrane proteins

b. Highly selective in nature

c. Transport saturates

d. Requires ATP as source of energy

e. Responds to protein inhibitors

1. a, b, c, d only

2. b, c, d, e only

3. a, c, d, e only

4. All a, b, c, d, e

Which of the following statements does not apply to reverse osmosis?

Which one of the following will not directly affect transpiration?
1.  Temperature

2.  Light

3.  Wind speed

4.  Chlorophyll content of leaves

The form of sugar transported through phloem is

1.  glucose

2.  fructose

3.  sucrose

4.  ribose

The process of guttation takes place 

Which of the following is an example of imbibition?

1.  Uptake of water by roothair

2.  Exchange of gases in stomata

3.  Swelling of seed when put in soil

4.  Opening of stomata

When a plant undergoes senescence, the nutrients may be

1.  accumulated

2.  bound to cell wall

3.  translocated

4.  None of these