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Stem - Plant Growth Substances
The role of auxins, cytokinins, ethylene and abscisic acid in controlling the apical bud dominance and lateral bud dormancy (Apical Dominance) are discussed earlier. Auxins also play a role in phototropism, geotropism and other responses of stems. Auxin-cytokinin interaction regulates the differentiation and growth of shoots from callus. Gibberellins stimulate cell division and cell elongation in shoot apices. Gibberellins abolish the dwarfism (rossette conditions) in plants and promote stem elongation.
Illustrate Nernst equilibrium potential for potassium ions A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM. The neuron is hea
Define Factors Which May Lead To Errors in Count? There are many factors, which may lead to errors in count. (i) Counts may be low if the agar medium used in the technique d
wine turns sour beause of the action of which bacteria? aerobic or anerobic?
Biochemical Changes Many workers have tried to follow the biochemical changes that precede flowering and result in meristems which give rise to flowers instead of vegetative s
Cell body in a neuron, the part which contains the nucleus and most of the cytoplasm and organelles. Cell cycle It is the sequence of events from one division of the cell to
vasoconstriction
how can i explain the biphasic graph i get fom combination of two drugs?
Define Solubility affecting absorption of dietary iron? Solubility is crucial for non-haem iron absorption as the inorganic iron salts have to be solubilized in the intestine f
What are the structures that form the external ear? What is its function? The internal ear comprises the pinna, or auricle, and the auditory canal. Its function is to conduct t
What is vascular cambium? What are their functions? The Vascular cambium is the secondary meristematic tissue that in roots and in the stem forms the vascular tissues phloem an
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