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VACUOLES
Some animals cells may have one to a few small fluid filled vacuoles.. Plants cells in general possess one or a few large vacuoles. Vacuoles of animals cells arise from golgi complex and are hence a part of the cytoplasmic endomembrane system . Obviously, these are bound by the same trilaminar units membrane these serve for storage and transport of dissolved nutritive secretory excretoty substances . and for the maintenance of an intracellular turgor pressure some freshwater animals cells possess one two or a few contractile vacuoles for osmoregulation such a vacuole is bound by a simple and delicate condensation membrane different from typical unit membrane.
Minerals Minerals are chemical elements needed by the body either to help form bodily structures or to facilitate chemical reactions. Dietary minerals are divided into two categ
porifera
does crossing over occur in all the homologous chromosomes???
In the last unit we traced the human evolutionary history mostly from a palaeontological viewpoint. Although still fragmentary, the available fossil evidence makes it possible to c
How different are the location of ribosomes in eukaryotic and in prokaryotic cells? In prokaryotes ribosomes are create free in cytoplasm. In eukaryotic cells they can also be
What are the main types of waste? The waste can be classified into main types, each of them carrying its own dissimilar environmental problem: organic waste, non recyclable was
Illustrate oil-bearing materials Oil contents for vegetable oil-bearing materials vary between 18% and 68% of the total weight of the seed, nut, kernel or fruit as indicated i
Hormones in Metamorphosis of Amphibia In amphibians, the changes that take place during metamorphosis are brought about by hormonal secretions of the thyroid gland. The first
Explain lyases These enzymes (code EC 4) cleave C-C, C-O, C-N and other bonds by elimination, forming double bonds or conversely adding groups to double bonds. Common names
how does these phylem parasites????
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