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Value of the osmotic pressure of the cell sap in different types of plants is in the order of
Value of the osmotic pressure of the cell sap in different types of plants is in the order of
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Solution
The correct option is B Trees > shrubs > herbs
Herbs are defined as small plants that are totally green and do not have lignin or brown parts. Thus, wood and secondary growth are totally absent and plant remains closer to ground as compared to shrub and trees. Shrubs come in between trees and herbs and may become woody. Trees show secondary growth, have lignin and are woody. Trees also attain height and need to lift water to greater heights. Also water requirement and absorption is considerable in trees. The osmotic pressure is the main force responsible for absorption of water by plants. If other things like environmental conditions, soil type etc. remain constant the value of osmotic pressure of cell sap is maximum in tree and least in herbs because of the different water requirements and morphological and anatomical differences as outlined above.
Herbs are defined as small plants that are totally green and do not have lignin or brown parts. Thus, wood and secondary growth are totally absent and plant remains closer to ground as compared to shrub and trees. Shrubs come in between trees and herbs and may become woody. Trees show secondary growth, have lignin and are woody. Trees also attain height and need to lift water to greater heights. Also water requirement and absorption is considerable in trees. The osmotic pressure is the main force responsible for absorption of water by plants. If other things like environmental conditions, soil type etc. remain constant the value of osmotic pressure of cell sap is maximum in tree and least in herbs because of the different water requirements and morphological and anatomical differences as outlined above.
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