Solve 15 Online MCQs (Multiple Choice Questions) on Plant Water Relations. Quiz Test No. 01
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Plant Water Relations: Quiz - 1
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Question 1 |
Which one of the following is used for measuring the rate of transpiration?
Ganong’s potometer | |
Moll's experiment | |
Auxanometer | |
Respirometer |
Question 2 |
‘Pulsation theory’ to explain ascent of sap was proposed by
Dixon and Jolly | |
J .C. Bose | |
Curtis and Clark | |
None of the above. |
Question 3 |
0.1 M solution of a solute has a water potential of
-2.3 bars | |
0 bar | |
22.4 bars | |
+2.3 bars |
Question 4 |
A cell becomes turgid when placed in
Isotonic solution | |
Hypertonic solution | |
Hypotonic solution | |
All of these |
Question 5 |
Stomata of CAM plants
never open | |
are always open | |
open during the day and close at night | |
open during the night and close during the day |
Question 6 |
A cell placed in hypertonic solution plasmolysis; the space between the cell wall and plasmolysed contents is filled with
Water | |
Cell sap | |
Hypertonic solution | |
Hypotonic solution |
Question 7 |
A cell when placed in solution gets plasmolysed. What is largely present in between the cell wall and the plasmolysed contents?
Water | |
Cell sap | |
Hypotonic solution | |
Hypertonic solution |
Question 8 |
A small mesophytic twig with green leaves is dipped into water in a big beaker under sunlight. It demonstrates
Photosynthesis | |
Respiration | |
Transpiration | |
None of these |
Question 9 |
A thin film of water is held by the soil particle under the influence of internal attractive force. It is called
Capillary water | |
Combined water | |
Hygroscopic water | |
Gravitational water |
Question 10 |
When a cell is fully turgid, which one of the following is zero?
Turgor pressure | |
Wall pressure | |
Diffusion pressure deficit | |
Osmotic pressure |
Question 11 |
Active K+ exchange mechanism for the opening and closing of stomata was given by
Devlin | |
Levitt | |
Seath | |
Khorana |
Question 12 |
The plants die due to wilting when
available light is reduced to half | |
xylem is blocked | |
a few roots are broken | |
phloem is blocked |
Question 13 |
After heavy rain fall with poor drainage, leaves of many plants wilt due to
Root rot | |
Poor soil aeration | |
High salt concentration | |
Low soil temperature |
Question 14 |
The direction and the rate of water movement from cell to cell is based on
Diffusion pressure deficit | |
Incipient plasmolysis | |
Turgor pressure | |
Wall pressure |
Question 15 |
At very low temperature, plants do not grow. This is due to
Desiccation of plants | |
Solarisation of plants | |
Cell cannot grow | |
Cell wall will be inhibited |
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There are 15 questions to complete.
This quiz is very helpfull. We need more & more difficult questions which make us to get confusion.
It will be very useful for checking the understanding of the lessons. Need more and more questions.
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This is too good and helpful. Thanks for this.
very good questions…..its very helpful