Briefly describe the apoplast and symplast pathway. from Biology

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51. Describe the external factors affecting transpiration.
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 Multiple Choice QuestionsShort Answer Type

52. What is apolast ?
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53. Describe internal factors affecting transpiration.
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54. What is symplast ?
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55. “Transpiration is a necessary evil.” Discuss.
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57. What is the different between the stomata of dicots and monocots?
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58. Comment upon antitranspirants
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59. What is potometer ?
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60. Briefly describe the apoplast and symplast pathway.


Apoplast pathway - It is the system of adjacent cell walls that is continuous throughout the plant, except the casparian strips of the endodermis of the root. It does not involve crossing of the cell membrane. 

Symplast pathway - It is the system of the interconnected protoplasts. Neighbouring cells are connected  through the cytoplasmivc strands that extend through the plasmodesmata. It involves crossing of the cell membrane. 
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