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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.
Q. What are the difference between plasma membrane and cell wall? Plasma membrane and cell wall is not the same thing. Plasma membrane, also known as cell membrane, is the exte
Q. Engler and Prantl's System of Classification? Adolf Engler, Professor of Botany, University of Berlin, Germany, proposed a phylogenetic system of classification in a book en
explain abt invivo gene therapy ..
Role of Chemical Factors in Controlling Apical Dominance There were indications about the existence of plant hormones in the last part of 19th century. The plant hormones had
Define the Factors that Affect the Rate of Drying? Factors that affect the rate of drying are as follow: 1) The fat content of the food-Higher fat contents generally result
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E. coli strains containing the plasmid pAMP are resistant to ampicillin. Describe how this plasmid functions to bring about resistance.
Which two of the following changes (a - d) usually tend to occur in the plain dwellers when they move to high altitudes (3,500 m or more)? 1. Enhance in red blood cell size 2
The process of fatty acid elongation is similar to fatty acid synthesis as it also requires both: -malonyl CoA and NADPH -malonyl CoA and NADH -Acetyl CoA and NADH
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