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Osmotic Function - Essential Elements
Plant cells generally contain mineral ions 10 to 1000 times higher in concentration than the surrounding soil. That is why water enters the cells by osmosis and builds up turgor. You know that turgor maintains the shape and size of non-rigid plant parts such as leaves. Potassium is a key ion in this respect. Changes in its concentration in guard cells affect turgor and thus result in opening and closing of stomata. Turgor is also essential for the growth of plant cells.
Metabolism Metabolism as you know is a process by which living organisms acquire and use energy. A large number of biochemical reactions take place in the living organisms dur
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State the term in broad - Lunule. In sand dollars, notches or holes which pass through the body of the animal. Their function is not fully understood though may be involved in
Q. Effects of smoking on oesophagitis? 1. A decrease in pyloric sphincter pressure which may predispose an individual to duodenal ulcer. 2. An alteration in the nature of ga
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(i) Name one fibrous and one globular protein. fibrous globular (ii) Outline the difference in structure between a fibrous and a globular protein. ' shows the ef
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