# The water logging capacity of garden soil will be determined by measuring the weight of  (1) soil by adding water and humus (2) water saturated soil then heating the soil till it is dry and then measuring the weight of soil (3) soil by adding water, boimass and humus (4) soil from different locations with biomass.

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The modified equation for water potential is

(1)

(2)

(3) ${\mathrm{\Psi }}_{\mathrm{w}}={\mathrm{\Psi }}_{\mathrm{s}}$

(4) ${\mathrm{\Psi }}_{\mathrm{w}}={\mathrm{\Psi }}_{\mathrm{p}}-{\mathrm{\Psi }}_{\mathrm{s}}$

Subtopic:  Water Potential Concept |
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The value of osmotic potential of an electrolyte is always

(1) more than non-electrolyte

(2) less than non-electrolyte

(3) same as non-electrolyte

(4) None of these

Subtopic:  Osmosis |
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Identify the process taking place in this experiment.

(1) Ringing experiment for translocation of sap

(2) Demonstration of root pressure

(3) Eosin test to demonstrate ascent of sap

(4) Demonstration of transpiration

Subtopic:  Phloem Translocation |
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Osmosis is a type of

(1) imbibition of solution

(2) diffusion of solvent

(3) evaporation of water

(4) diffusion of solute

Subtopic:  Osmosis |
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Which of the following statement is correct?

(1) DPD = OP - WP

(2) DPD = OP + WP

(3) DPD = WP - OP

(4) DPD= TP + OP

Subtopic:  Plant Water Relations: Water Potential: DPD |
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(1) Dixon and Jolly (1894)

(2) Dixon and Benson (1885)

(3) Dixon and Jolly (1950)

(4) Sir Jagdish Chandra Bose (1850)

Subtopic:  Transpiration & Guttation |
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Stomatal opening is affected by

(1) nitrogen concentration, carbon dioxide concentration and light

(2) carbon dioxide concentration, temperature and light

(3) nitrogen concentration, light and temperature

(4) carbon dioxide concentration, nitrogen concentration and temperature

Subtopic:  Stomata |
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Translocation of photosynthetic end products in seive tubes is

(1) 3-5 mm/h

(2) 3-5 cm/h

(3) 1-15 cm/h

(4) 60-100 cm/h

Subtopic:  Phloem Translocation: Short Distance Transport | Phloem Translocation |
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The ratio of osmotic pressure exerted by 1 M sucrose and 1 M NaCl solution will be

(1) 1

(2) 2

(3) 0.1

(4) 0.5

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