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NEET UG BIOLOGY MCQ: TRANSPORT IN PLANTS
1
Hard
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Analyzing
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Identify true and false statements and select the correct option from the codes given below
I. As suction pressure increases, water absorption also increases which in turn increases the absorption of ions
II. Absorption of ions is affected by transpiration pull
III. Large amount of charged particles are absorbed along with absorption of water
IV. Pressure flow hypothesis depends entirely on the existence of mechanism for loading sugars into phloem at the source region and unloading it at the sink
V. Contents in the sieve tube move undirectionally
I. As suction pressure increases, water absorption also increases which in turn increases the absorption of ions
II. Absorption of ions is affected by transpiration pull
III. Large amount of charged particles are absorbed along with absorption of water
IV. Pressure flow hypothesis depends entirely on the existence of mechanism for loading sugars into phloem at the source region and unloading it at the sink
V. Contents in the sieve tube move undirectionally
View answer and explanation
Correct option: A
I, II, III and IV are true while V as false
Option A is correct because it accurately identifies the truthfulness of the statements regarding water and ion absorption and the pressure flow hypothesis.
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Study the following statement and choose the correct option(s) from the codes from below
I. Root pressure provides a light push in the overall process of water transport
II. Root pressure causes the flow of water faster through xylem than it can be lost by transportation
III. In symplast pathway, water move exclusively through the cell wall and intercellular spaces
IV. Guttation is a cause of transpiration pull
V. Most plants fulfill their water requirement by transpiration pull Rate of imbibition is more in?
I. Root pressure provides a light push in the overall process of water transport
II. Root pressure causes the flow of water faster through xylem than it can be lost by transportation
III. In symplast pathway, water move exclusively through the cell wall and intercellular spaces
IV. Guttation is a cause of transpiration pull
V. Most plants fulfill their water requirement by transpiration pull Rate of imbibition is more in?