Absorption by Roots The Processes Involved | Chapter 4 Class 10 ICSE Biology Selina | Conduction

"Timestamp:
0:00 Introduction
1:00 Plant Physiology
2:24 Absorption by Roots
3:47 Need of water and minerals for plants
8:53 Characteristics of roots for absorbing water
10:17 Huge surface area of roots
12:53 Root hairs contain cell sap, of a higher concentration than that of surrounding water
15:30 Root hairs have thin walls
21:15 Absorption and conduction of water and minerals
23:15 Imbibition
26:41 Diffusion
27:55 Diffusion experiment
31:01 Osmosis
36:47 Osmosis Experiment
40:43 Conclusions
42:57 Osmosis Modified Experiment
44:34 Observations
47:04 Another modification – using Visking bag
50:29 Osmosis Experiments conclusions
52:38 How long can osmosis continue?
55:44 Osmotic Pressure
57:46 Tonicity
1:05:10 Active Transport

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