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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.
(i) Effect of Human Health: (a) Mercury compounds in waste water in converted into methyl mercury by Bacterial action which causes numbness of limbs, lips and tongue, deaf
BIO GEOGRAPHICAL EVIDENCE- The patterns of distribution of animals and plants in different parts of the globe are termed as biogeography. It is believed that around carbo
Excretory organ of lizard.
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Q. What do you understand by Haemagglutinins? Haemagglutinins are the globulin type of proteins which are present in the seeds of plants like double bean, field bean, white be
Deficiency of vitamin -A (hypovitaminosis-A) Vitamin A deficiency develops due to insufficient supply of the vitamin or its defective absorption from alimentary tract. The defi
The cell cycle undergoes a sequence of changes which involve a period of growth replication of DNA, Followed by cell division. This sequence of changes is called cell cycle.
Q. What is rigor mortis? Dead bodies are at first limp. Many hours after death, skeletal muscles undergo a partial contraction that fixes the joints. This condition, called rig
Concerning the maintenance of body temperature how do beings of the class Reptilia classify? Like fishes and amphibians, beings of the class Reptilia are heterothermic animals
Unilateral Incompatibility This relates to incompatibility that operates in one direction. The most common way to ascertain unilateral incompatibility is to perform crosses be
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