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NEET UG BIOLOGY MCQ: TRANSPORT IN PLANTS
1
Medium
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Understanding
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Identify the correct statements from the following:
I.Accumulation of ions in the guard cells does not require energy.
II.A high pH favours stomatal opening.
III. Movement of chloride ions into the guard cells accrues in the response to the electrical differential created by ions.
IV. With the entry of several ions and chloride ions, the water potential of guard cells increases
I.Accumulation of ions in the guard cells does not require energy.
II.A high pH favours stomatal opening.
III. Movement of chloride ions into the guard cells accrues in the response to the electrical differential created by ions.
IV. With the entry of several ions and chloride ions, the water potential of guard cells increases
View answer and explanation
Correct option: C
II and III
Option C (II and III) is correct because a high pH favors stomatal opening, and chloride ion movement into guard cells is driven by electrical gradients.
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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
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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?