|
Explain the mechanism of water absorption by plants
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|
0
|
2391
|
July 22, 2016
|
|
What are the advantages and disadvantages of transpiration?
|
|
1
|
10337
|
July 22, 2016
|
|
Describe transpirational pull model of water transport in plants
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0
|
2299
|
July 22, 2016
|
|
What is guttation ? How it is affected by root pressure?
|
|
0
|
1529
|
July 22, 2016
|
|
Describe the role played by protein pumps during active transport in plants
|
|
0
|
1289
|
July 22, 2016
|
|
State the various features of leaves that increase or decrease transpiration
|
|
0
|
596
|
July 22, 2016
|
|
What role does root pressure play in water movement in plants?
|
|
0
|
1842
|
July 22, 2016
|
|
What are the functions of turgor pressure ? OR Write the significance of turgor pressure
|
|
0
|
1626
|
July 22, 2016
|
|
Discuss the factors responsible for ascent of xylem sap in plants
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|
0
|
4547
|
July 22, 2016
|
|
How do rise in temperature and wind velocity affect transpiration ? Write any two adaptations shown by plants to reduce transpiration
|
|
0
|
1366
|
July 22, 2016
|
|
What is wilting ? Briefly explain its types
|
|
0
|
5944
|
July 22, 2016
|
|
What are aquaporins?
|
|
0
|
1776
|
July 22, 2016
|
|
Why rate of transpiration increases with an increase in root-shoot ratio?
|
|
0
|
806
|
July 22, 2016
|
|
What are photoactive and scotoactive types of stomata?
|
|
0
|
7751
|
July 22, 2016
|
|
How is ascent of sap occurs?
|
|
0
|
751
|
July 22, 2016
|
|
Which metal element is involved in the opening and closing of stomata?
|
|
0
|
1655
|
July 22, 2016
|
|
Name the theory proposed by Dixon for ascent of sap
|
|
0
|
691
|
July 22, 2016
|
|
When does wilting occurs?
|
|
0
|
678
|
July 22, 2016
|
|
What is absorption lag?
|
|
0
|
1275
|
July 22, 2016
|
|
What is atmometer?
|
|
0
|
607
|
July 22, 2016
|
|
Why is energy required to develop root pressure?
|
|
0
|
1408
|
July 22, 2016
|
|
Which fraction of soil water is available to plants for absorption by roots?
|
|
0
|
1712
|
July 22, 2016
|
|
What is trans-membrane pathway?
|
|
0
|
563
|
July 22, 2016
|
|
Define translocation
|
|
0
|
1546
|
July 22, 2016
|
|
Explain the structure of stomata. What role do they play in transpiration ? OR
|
|
1
|
4443
|
July 22, 2016
|
|
Define osmotic pressure. Explain how it influences other components of cell water relations in plants
|
|
0
|
1626
|
July 22, 2016
|
|
Explain the mechanism of uptake of minerals by the plants
|
|
0
|
921
|
July 22, 2016
|
|
How are K+ ions helpful in the opening and closing of stomata ? Explain Malate or K+ ion pump hypothesis
|
|
0
|
13357
|
July 22, 2016
|
|
What are the factor affecting stomatal movements?
|
|
0
|
5527
|
July 22, 2016
|
|
Briefly describe water potential. What are the factors affecting it?
|
|
0
|
5599
|
July 22, 2016
|