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(C) In plants,transport occurs through two main vascular tissues:$1$. $Xylem$: It transports water and minerals from roots to leaves. This process is

Vedclass · Accepted Answer

Xylem - Negative hydrostatic pressure gradient (Suction through a straw)Phloem - Positive hydrostatic pressure gradient (Garden hose)

Vedclass · Answer

(C) In plants,transport occurs through two main vascular tissues:$1$. $Xylem$: It transports water and minerals from roots to leaves. This process is driven by transpiration,which creates a negative pressure (tension) or a negative hydrostatic pressure gradient,similar to sucking water through a straw.$2$. $Phloem$: It transports food (sucrose) from source to sink. This process is driven by the pressure-flow hypothesis,where high sugar concentration at the source creates a positive hydrostatic pressure gradient,pushing the sap through the sieve tubes,similar to water flowing through a garden hose.

List-$I$	List-$II$
$(a)$ Cohesion	$(i)$ More attraction in liquid phase
$(b)$ Adhesion	$(ii)$ Mutual attraction between water molecules
$(c)$ Surface tension	$(iii)$ Water loss in liquid phase
$(d)$ Guttation	$(iv)$ Attraction towards polar surfaces

Select the correct option regarding the vascular tissues in plants.

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