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Biology CBSE Live product
Class 10 (2025-26)
Life processes
Light and dark reactions
14.
Ascent of sap and imbibition
Question:
6
m.
Choose the best answer:
1
.
When mature, all the xylem components are dead, except ________.
Xylem Vessels
Xylem parenchyma
Tracheids
Xylem fibres
2
.
On which of these mechanisms is the ascent of sap based on ________.
Transpiration pull
Cohesive and adhesive forces
Continuous water column
All of these
3
.
The conditions necessary for imbibition are ________.
Presence of concentration gradient
Affinity betwwen imbibant and imbibate
All of the above
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