146. Transpiration differ from evaporation in

1. 1. Rate of water loss

   
   
   

   2. Transpiration is a physiological process while evaporation is physical process

   
   
   

   3. Transpiration is physical process while evaporation is a physiological process

   
   
   

   4. Frequency of water loss

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

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147. Osmosis is defined as

1. 1. Flow of solvent (water) through a semipermeable Membrane from less concentrated solution to more concentrated solution

   
   
   

   2. Flow of solute from a semipermeable membrane

   
   
   

   3. Flow of water without a membrane

   
   
   

   4. None of the above

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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148. Root hairs absorb water when

1. 1. They respire rapidly

   
   
   

   2. Soil solution is isotonic

   
   
   

   3. Salt concentration of cell sap is high

   
   
   

   4. Salt concentration of soil is high

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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149. Which of the following statements is/are correct regarding auxin

1. 1. It inhibits the following of leaf

   
   
   

   2. It destroy weeds

   
   
   

   3. It permote apical grouth

   
   
   

   4. All of above

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

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150. Which one of the following statements is/are correct about harmone

1. 1. It is a organic compound which control the growth of plant

   
   
   

   2. It is a special kind of organic compound found in small amount which control metabolic activity and growth of plant

   
   
   

   3. It is different concentration have different effect on different organ

   
   
   

   4. All of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

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