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The biological conversion of atmospheric nitrogen into ammonia in the group of plants known as legumes (peas, beans lentils and clover etc.) is achieved by the action of soil bacteria which infect the plant tissues through the root hairs. The bacteria multiply and grow using nutrients and energy from the plant, producing small growths or nodules on the roots. In the nodules the bacteria can then convert atmospheric nitrogen into ammonia.
(i) The root bacteria use a complex enzyme to enable the conversion of atmospheric nitrogen into ammonia. In Figure 4, the graph shows the rate at which they produce ammonia against increasing temperature. Explain how and why the rate of ammonia production differs in zones 1, 2 and 3 shown on the graph, and what point X represents.
Explain intravascular fluid compartment - extracellular fluid? The extracellular fluid compartment is sub-divided into the intravascular fluid compartment (fluid within the blo
Q. Define Dissection of the Aorta ? The CXR may be abnormal in upto 80 per cent of patients. The abnormalities include: i) Widened mediastinum: This is defined as a mediast
what is the differences between spherical symmetry and radial symmetry
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Define effect of Protein excess during pregnancy period? It is not advisable to recommend protein supplements. Reports in the literature indicate that high-protein supplements
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Define the Feeding and Nutritional Management of spinal trauma? The main objectives of nutritional management are to meet the nutritional needs of the initial acute phase and
Pharynx: Pharynx is a funnel shaped tube about 13cm long that starts at the internal nares and extends to the level of the cricoid cartilage. It lies posterior to the n
Which of the following best explains the reason why DNA ligase is needed to complete the replication of internal chromosomal segments? A. DNA ligase is able to delete the last
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