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NEET UG BIOLOGY MCQ: TRANSPORT IN PLANTS
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Some cells are placed in a solution of glucose to measure the rate of diffusion. As the concentration of glucose solution is being increased, the diffusion rate increases simultaneously. However, when the concentration of glucose solution reaches above 10 m, the diffusion rate no longer increases
Which statement best define the mechanism of glucoses transport in the cells?
Which statement best define the mechanism of glucoses transport in the cells?
View answer and explanation
Correct option: A
Transport of hydrophilic substances along the concentration gradient through fixed membrane transport protein without the involvement of energy expenditure
Option A (Transport of hydrophilic substances along the concentration gradient through fixed membrane transport protein without the involvement of energy expenditure) is correct because the diffusion rate plateaus above a certain glucose concentration, indicating saturation of transport proteins without energy use.
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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?