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Similar to all animal cells, protozoans are covered by a plasma membrane which surrounds cytoplasm of the cell, protozoan's integument or skin. Like all membranes, it's permeable; water and low molecular weight substances dissolve in it. Oxygen, is required for metabolism, and metabolic wastes which are generated by metabolism, diffuse across the surface, giving plasma membrane respiratory and excretory functions. Nucleus, with its nucleolus and chromosomes, contains genetic material and would be involved in providing copies of itself for new cells, reproductive system. Golgi apparatus, rough endoplasmic reticulum, and lysosomes which they produce, fuse with ingested food vacuoles, phagosomes.
Anomalies Related to Oesophagus and Stomach Let us discuss briefly the anomalies of oesophagus and stomach. These are summarised as follows: Associated Problems 1) P
What is Binary Fission in cell reproduction? Cell division takes place in prokaryotic cells by binary fission, also called prokaryotic fission. In prokaryotes, DNA is contained
How does the male gamete penetrate the egg cell? How does the female gamete protect itself from the entrance of more gametes after the entrance of the first sperm cell? The spe
Explain Water as a lubricant? All fluids have lubricating as they can make it easier for the solid materials to slip over one another. Water-based fluids act as lubricants in
Properties Gum Arabic is unique between the natural hydrocolloids because of its extremely high solubility in water and can yield solutions of up to 55% concentrations. Solutio
Q. What is inharmonious ecological interaction? The Inharmonious or negative ecological interaction is that in which at least one of the participating beings is harmed.
Fischer 's template or lock and key model According to this model, the catalytic site of the enzyme has a proper conformation compatible to a specific substrate even in the a
What is excretion? Excretion in Physiology is the method of elimination of metabolic wastes and other toxic substances from the body.
advantages of protozoa
Q. What are the major biological functions in which chlorine ions participate? Like sodium cations, chlorine anions actively participate in the regulation of the osmolarity of
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