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Abscisic Acid (AbA) - Plant Growth Substances
In 1961 Lice and Cams isolated a substance in crystalline form from mature cotton fruit. This substance stimulated the abscission of debladed cotton petioles. It also promotes flowering in some short day plants. The dormancy response may be through an effect of RNA and protein synthesis. Some effects of Abscisic Acid seem to be reversed by gibberellins (seed dormancy) or by cytokinins (stomatal closure).
Q. Explain Spoilage by fungi and bacteria? The dominant spoilage organisms in fruits are fungi, as their pH is low (normally 5),whereas the pH of vegetables is fiom 5.0 to 7
Explain what is Fern Allies - Lycopophyta ? Fern allies are those groups of vascular (with conducting vessels) plants that have close ties to the ferns. Sometimes they are refe
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Distribution of Stomata There are two parameters normally used for expressing the distribution of stomata. Stomatal frequency: The number of stomata per unit area
GLANDS - 1 . LACRYMAL GLANDS - Tear glands numbers are 3. Its secretion is aquous & salty, keeps eye ball wet, give nourishment to cornea. Lysozyme also present
what is the general characteristic of aschelminths
#what characteristics of green algae that led to biologists considered it as a plant?
A pure phospholipid bilayer with its hydrophobic interior, is permeable to water and gases such as O2, CO2, N2 and small uncharged polar molecules such as urea, ethanol, bu
Iron deficiency Iron plays an essential role in oxygen transport in the body as a constituent of haemoglobin where nearly 60% of the body iron is found. Apart from oxygen tran
Aplastic Anaemia Aplastic anaemia is a condition in which production of red cells in the bone marrow is reduced. It involves failure to produce adequate red cells, white cell
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