Imbibition Notes: Definitions & Explanations PDF | Download eBooks
Study Imbibition lecture notes PDF with biology definitions and explanation to study “What is Imbibition?”. Study imbibition explanation with biology terms to review biology course for online degree programs.
Imbibition Definition:
Imbibition is the uptake of water due to the low water potential of the dry seed.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Imbibition Notes:
Imbibition is a special type of diffusion when water is absorbed by solids-colloids causing an enormous increase in volume. Examples include the absorption of water by seeds and dry wood. If it were not for the pressure due to imbibition, seedlings would not have been able to emerge out of soil into the open; they probably would not have been able to establish. Imbibition is also diffusion since water surface potential movement is along a concentration gradient; the seeds and other such materials have almost no water hence they absorb water easily. Water potential gradient between the absorbent and the liquid imbibed is essential for imbibition. In addition, for any substance to imbibe any liquid, affinity between the adsorbant and the liquid is also a prerequisite. Imbibition occurs when a wetting fluid displaces a non-wetting fluid, contrary to drainage where a non-wetting phase displaces the wetting fluid. The two processes are governed by different mechanisms.
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