|
Explain the mechanism of water absorption by plants
|
|
1
|
1782
|
July 22, 2016
|
|
What are the advantages and disadvantages of transpiration?
|
|
2
|
8760
|
July 22, 2016
|
|
Describe transpirational pull model of water transport in plants
|
|
1
|
1135
|
July 22, 2016
|
|
What is guttation ? How it is affected by root pressure?
|
|
1
|
1020
|
July 22, 2016
|
|
Describe the role played by protein pumps during active transport in plants
|
|
1
|
916
|
July 22, 2016
|
|
State the various features of leaves that increase or decrease transpiration
|
|
1
|
222
|
July 22, 2016
|
|
What role does root pressure play in water movement in plants?
|
|
1
|
1402
|
July 22, 2016
|
|
What are the functions of turgor pressure ? OR Write the significance of turgor pressure
|
|
1
|
1108
|
July 22, 2016
|
|
Discuss the factors responsible for ascent of xylem sap in plants
|
|
1
|
4078
|
July 22, 2016
|
|
How do rise in temperature and wind velocity affect transpiration ? Write any two adaptations shown by plants to reduce transpiration
|
|
1
|
614
|
July 22, 2016
|
|
What is wilting ? Briefly explain its types
|
|
1
|
4593
|
July 22, 2016
|
|
What are aquaporins?
|
|
1
|
1129
|
July 22, 2016
|
|
Why rate of transpiration increases with an increase in root-shoot ratio?
|
|
1
|
483
|
July 22, 2016
|
|
What are photoactive and scotoactive types of stomata?
|
|
1
|
6911
|
July 22, 2016
|
|
How is ascent of sap occurs?
|
|
1
|
400
|
July 22, 2016
|
|
Which metal element is involved in the opening and closing of stomata?
|
|
1
|
1328
|
July 22, 2016
|
|
Name the theory proposed by Dixon for ascent of sap
|
|
1
|
413
|
July 22, 2016
|
|
When does wilting occurs?
|
|
1
|
388
|
July 22, 2016
|
|
What is absorption lag?
|
|
1
|
785
|
July 22, 2016
|
|
What is atmometer?
|
|
1
|
292
|
July 22, 2016
|
|
Why is energy required to develop root pressure?
|
|
1
|
1004
|
July 22, 2016
|
|
Which fraction of soil water is available to plants for absorption by roots?
|
|
1
|
1278
|
July 22, 2016
|
|
What is trans-membrane pathway?
|
|
1
|
247
|
July 22, 2016
|
|
Define translocation
|
|
1
|
961
|
July 22, 2016
|
|
Explain the structure of stomata. What role do they play in transpiration ? OR
|
|
2
|
2481
|
July 22, 2016
|
|
Define osmotic pressure. Explain how it influences other components of cell water relations in plants
|
|
1
|
951
|
July 22, 2016
|
|
Explain the mechanism of uptake of minerals by the plants
|
|
1
|
485
|
July 22, 2016
|
|
How are K+ ions helpful in the opening and closing of stomata ? Explain Malate or K+ ion pump hypothesis
|
|
1
|
11315
|
July 22, 2016
|
|
What are the factor affecting stomatal movements?
|
|
1
|
4271
|
July 22, 2016
|
|
Briefly describe water potential. What are the factors affecting it?
|
|
1
|
4847
|
July 22, 2016
|
