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Q. What are the cnidocytes? What is the name of the capsule inside the cnidocyte? What are the biological functions of this structure?
Cnidocytes are specific cells present in coelenterates. They are found in the epidermis and contain toxic substances that can paralyze, hurt or even kill other animals.
Each cnidocyte has an inner capsule know as nematocyst where the actual urticating substance is stored. When a cnidocyte is excited it causes the nematocyst to expose a filament contains the toxic chemical.
Cnidocytes and their nematocysts have the biological functions of defending the individual from external aggression also of helping to capture their prey.
State in brief about the Zinc It is concerned with the functioning of sulphydryl compounds, such as cysteine, in regulation of redox potential within the cell. Zinc is somet
What is Barfoed's test and its principle? This test is a specific test for monosaccharides. Principle This test is also a copper reduction test but differs from Fehling
Characteristic Features of Coelom Sensory system consisting of eyes, photoreceptor cells, statocysts, taste buds and tactile organs. Respiration by skin, gills or par
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Q. Which is the kind of muscle tissue that moves the bones? The bones are moved by the skeletal striated muscles these muscles are voluntary (controlled by volition).
Q. Define the Organization Levels of Life? Ans. The cell is the basic unit of life - the smallest unit that can carry on all the processes of life. Organisms that consist of a
Q What are the kinds of digestion and of digestive system of platyhelminthes? Flatworms have incomplete digestive systems and they present intracellular and extracellular compl
Testing for urine sugars is not recommended for either diagnosis or monitoring of patients with diabetes. This is because a urine sugar is not a reliable test. When no facilities a
The field of dietetics can be related to: Nutrition care and intervention focused on the individual, and Nutrition care and intervention focused on the group.
modes of nutrition in rat
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