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Nastic and Epinastic Responses
Paratonic variation movements of plant parts in which direction of movement is independent of the direction of stimulus. Nastic responses are like closing of leaflets by touch (E.g. Mimosa pudica) and Epinastic responses are like bending downward of the petiole bringing the leaf to a hanging position. Ethylene causes epinasty of leaves by promoting elongation of cells on the upper side. If one half of a leaf of plant like xanthium is shaded, then the corresponding site of the petiole elongation so that the petiole bends displacing the leaf blade towards irradiated side. Secondly upward bending of the shaded side of the leaf (hyponasty) this mechanism helps the plant in avoiding overlapping of leaves and maximum exposure to Light. The canoppy forms leaf mosaics.
Hydrolyases These enzymes (code EC 3) catalyze the hydrolytic cleavage of C-O, C-N, C-C and some other bonds, including phosphoric anhydride bonds. Their trivial names are f
What is the Axes of Fick The Axes of Fick show that any eye position can be specified as the amount of rotation around a set of axes fixed in the orbit: 1) Vertical Axis: Z-
Long Distance Transport Once in the xylem vessels, the transport of the mineral elements from the root to the shoot is driven by the gradient of hydrostatic pressure (root pre
differences of plants and animals in terms of form and structure?
List what organelle is responsible for each of these cellular functions. -production of energy (ATP) for the cell -synthesizing proteins -cellular digestion.
WHAT ARE TRACHEOLES
Oxidation of glyceraldehyde-3-phosphate Oxidation of glyceraldehyde-3-phosphate : The conversion of glceraldehyde- 3-phosphate to 1,3-bisphosphoglycerate is catalysed by
Immobilisation of cells Immobilisation of cells enables Re-use of biomass by rotation of cells Separation of cells from the medium and Leaching of metab
Animal Cloning: When entire animals are obtained from somatic cells of an animal, it is known as animal cloning. Cloning is usual in plants but in case of animals only some deg
WAXES These are monoglyceride compounds. They are chemically inert (due to absence of double bonds) and insoluble in water. On heating they become soft and pliable
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