81. Chemicals having on growth and development are

1. 1. Enzyems

   
   
   

   2. Phyto hormones

   
   
   

   3. Catalytic agents

   
   
   

   4. Manure

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

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82. process by which plant prepare their food is

1. 1. Carboghdrolysis

   
   
   

   2. Metabolic synthesis

   
   
   

   3. Photsynthesis

   
   
   

   4. Photosyntization

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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83. Which one produces more ethylene?

1. 1. Green apple

   
   
   

   2. Green banana

   
   
   

   3. Repening banana

   
   
   

   4. Fresh potato tuber

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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84. Naturally accurring auxin is

1. 1. IAA

   
   
   

   2. Ethyle

   
   
   

   3. 2, 4-D

   
   
   

   4. Benzal dehyole

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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85. Auxin is a

1. 1. Growth catylser

   
   
   

   2. Growth destroyer

   
   
   

   3. Growth hormone

   
   
   

   4. Growth inhibitor

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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