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Explain the Mechanism of Phagocytosis
In phagocytosis, the organism is entrapped into vacuoles known as "Phagosome". The cytoplasmic granules, organelles or lysosomes fuse with the phagosome releasing powerful microbicidal substance. These substances are divided into:
a) Those which are dependent on O2 mechanism, and
b) Those which are O2 independent mechanisms
Example for O2 dependent mechanism is superoxide anion, singlet O2 hydroxyl free radicals. The O2 independent ones are lysosomes, proteolytic enzymes and several other hydrolytic enzymes.
Explain physical barrier for External Defence Mechanism - Skin It provides nice protective covering to the body. The outer layer- horny layer - contains dead keratinized cells
Interaction in the earth ecosystem: In this comparatively smaller section, we will give you the idea, that the earth as a whole is an ecosystem. Whatever you have learnt till
Explain Vagus Nerve - Neural Control of Respiration The rhythm and depth of respiration are controlled by the reflexes from the vagus nerve. When the lungs are inflated, the
Compare and contrast the characteristics of sound waves and electromagnetic
what do you mean by diffraction of light
Explain the Physiology of Lactation Lactogenesis is the onset of copious milk secretion around parturition, triggered by a fall in plasma progesterone levels. Although some col
Hypothesis: The next step is to formulate hypothesis. A hypothesis is a statement, put forward on the basis of reasoning, about the things that are being studied. It is an att
Social Role of Communication: Social relevance of communication follows from the economic and political role of communication. We, in this country, have often talked about u
two human made features o the aerial map
Explain Steroids Steroids form a group of compounds which are often found in association with fats but structurally and functionally these are somewhat unrelated to most
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