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Transport in Plants

Short Answer Type

41. What is wilting ?

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42. What is transpiration flux ?

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43. What is cohesion?

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44. On what properties of water does the ascent of xylem sap depend?

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Long Answer Type

45. Describe the mechanism of passive water absorption.

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Short Answer Type

46. What is absorption lag ?

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47. Describe active absorption.

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48. What are scotoactive stomata ?

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49. What are photoactive stomata ?

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50. Write notes on cuticular and lenticular transpiration

Cuticular transpiration : It is the transpiration which occurs through cuticle. It is 3-10% of total transpiration.

Lenticular transpiration : These are the openings in case of stem. These are formed below stomata. Some amount of water is transpires through the lenticels. This type of transpiration is called lenticular transpiration. It is 1% of total transpiration.

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