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Which of the following is true/false regarding transport of substances in plants?
(i) Mass flow is the movement of substance in bulk as a result of pressure difference.
(ii) Bulk flow is achieved only through a positive hydrostatic pressure gradient.
(iii) The apoplast system is the system of interconnected protoplasts.
(iv) Most of the water flow in the roots occurs via the apoplast since the cortical cells are loosely packed, and offer no resistance to water movement.

A
(i) and (iv) are true; (ii) and (iii) are false.

B
(i) and (ii) are true; (iii) and (iv) are false.

C
(ii) and (iii) are true; (i) and (iv) are false.

D
(i), (ii) and (iv) are true; (iii) is false.

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Text SolutionText solutionverified iconVerified

Apoplast refers to the non protoplasmic components of a plant, including the cell wall and the intracellular spaces. Rest of the statements are true.
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Question Text
Which of the following is true/false regarding transport of substances in plants?
(i) Mass flow is the movement of substance in bulk as a result of pressure difference.
(ii) Bulk flow is achieved only through a positive hydrostatic pressure gradient.
(iii) The apoplast system is the system of interconnected protoplasts.
(iv) Most of the water flow in the roots occurs via the apoplast since the cortical cells are loosely packed, and offer no resistance to water movement.
TopicTransport in Plants
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes119