Which of the following statements are correct ?
a) Translocation is the movement of materials from roots or leaves to other tissues throughout the plant.
b)The translocation in xylem is explained by transpiration pull theory
c) The negative pressure in root can be the reason to push water up to small heights in stem
d) Root pressure helps to maintain the continuous chain of water molecules in xylem
e) In phloem, movement of material takes place from a point of high pressure to a point of low pressure by mass flow.

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a,b,c and d only

b,c,d and e only

a,c,d and e only

a,b,d and e only

answer is B.

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Detailed Solution

Translocation is the movement of materials from roots or leaves to other tissues throughout the plant.

b)The translocation in xylem is explained by transpiration pull theory
c) The positive pressure in root can be the reason to push water up to small heights in stem
d) Root pressure helps to maintain the continuous chain of water molecules in xylem
e) In phloem, movement of material takes place from a point of high pressure to a point of low pressure by mass flow.

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