Question

All the following involves osmosis except
(a) Water from soil entering a root hair
(b) Water passing from root hair to adjacent cells
(c) Water passing up a xylem vessel element to xylem vessel element above it
(d) Water entering a mesophyll cell from xylem vessel element​

Answer 1

All the following involves osmosis except (c) Water passing up a xylem vessel element to xylem vessel element above it.

• The reason that water moves from a xylem vessel element to another xylem vessel element above it is due to transpiration pull. Transpiration pull is the reason that water moves against the force of gravity in upward direction in the xylem tube. Hence, option (c) is not the occurrence of osmosis.
• All other options mentioned are the effect of osmosis which is the movement of water from a higher concentration to a lower concentration along the concentration gradient.

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Answer 2

Answer:

(c) Water passing up a xylem vessel element to xylem vessel element above it

Explanation:

All different alternatives referred to are the impact of osmosis that is the motion of water from a better awareness to a decrease awareness alongside the awareness gradient. All of the above includes the osmosis besides the water passing from one xylem vessel detail to every other xylem vessel detail. This is due to the fact the osmosis is the system of the motion of the water via the mobileular membrane and xylem cells do now no longer have any dwelling cloth while they may be matured.

The motive that water actions from a xylem vessel detail to every other xylem vessel detail above it's miles because of transpiration pull. Transpiration pull is the motive that water actions towards the pressure of gravity in upward course withinside the xylem tube. Hence, option (c) isn't always the incidence of osmosis.

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