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Q. How does the inflammation mechanism work?
When some tissue injury other vasoactive and occurs histamine substances (called mediators of inflammation) are released, they cause the blood flow and vasodilation to the affected site increases. Granulocyte leukocytes present in the blood are attracted to the site of the injury by substances called as chemotactic factors also released by the injured tissue and by the active granulocytes in the area. The granulocytes exit the capillaries by diapedesis that is using pseudopods and Macrophages present in the region are activated too. These cells flood the extracellular space of the affected area trying to eliminate or kill harmful agents, to prevent to isolate and tissue necrosis the damaged tissue.
Considering the hybridization in a trait like the color of the flowers of a given plant species (yellow recessive / red dominant) conditioned by a pair of different alleles, what a
Q. How do the potassium and sodium ions maintain the resting potential of the neuron? The plasma membrane of the neuron when at rest maintains an electric potential difference
In a word, what process provides the energy for muscle contraction
Other Complications : Bioprosthetic valves have a tendency for degeneration, calcification or cusp perforation. Current models have overcome many of these problems. Calcification
DIGESTION OF FOOD MATERIALS Digestion, you know, involves the mixing of food, its movement through the digestive tract and chemical breakdown of the large ntolecules of food
Q How do cells get energy for their functioning? Cells get energy for their metabolic reactions from the breaking of organic molecules with high energetic content. This energy
A fruit fly has four pairs of chromosomes in its cells. At meiosis, how many different combinations of maternal and paternal chromosomes are possible in the gametes?
Meselson and Stahl demonstrated that DNA replication is a semi-conservative process. Which of the following best explains the definition of "semi-conservative"? A. The two stra
Metabolic Events Let us now examine the changes that occur in the seeds after they imbibe water. In general, the most important metabolic events are: Degradation
Explain Functions of proteins Functions of proteins are included herewith. These include: Source of energy: Constituent amino acids can be deaminated and metabolized to
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