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Response to Heavy Metal Stress
Several heavy metals emanating from industrial mining and sewage disposal operations contaminate the environment. Cadmium is a common contaminant of this class. It affects human health adversely. It usually retards plant metabolic rates. Yet plants can be selected for their ability to grow on normally toxic concentrations of this metal ion. Low molecular weight proteins capable of binding with metal ions have been found in several plant species. Synthesis of these proteins is induced in response to heavy metal-ions present in the environment. These proteins probably help the plants in accumulating the metals and keeping them away from the sensitive cellular sites.
Trace the flow of blood through the systemic circuit (hepatic portal system) and the pulmonary circuit, beginning and ending in the left ventricle . You will be using named chamb
Compare and contrast covalent and ionic bonds in molecules, give an example of each.
Q. Show the Natural selection of taxonomist? Natural selection associated with successful reproduction maintains a basic similarity of the reproductive feature of flowers, frui
As heart failure sets in, there is activation of RAS (Fig 2.1). Adrenergic stimulation of beta-1 receptors in juxtaglomerular apparatus of the kidneys results in release of renin.
Diagnostic Models Study models made from impressions of the arches are invaluable for diagnosis and treatment planning. The model must be mounted on an adjustable or semi adjus
Q. Explain about Ecological species concept? The ecological species concept: This identifies a species as a population that occupies a distinct ecological niche, whence its rep
Iron Iron is an essential component of the proteins involved in oxygen transport or utilization. These proteins, including hemoglobin, myoglobin and a number of cytochrome and
Define Supplementation to prevention of iron deficiency anaemia? Supplementation with low doses of iron is necessary to prevent anaemia in particular groups of people. Fortifie
PHYLUM CHORDATA Definition and Introduction Bilateral and deuterostomial eucoelomate eumetazoa, basically possessing ,in the embryo or throughout life , a flexible,
ATP is DIRECTLY required in which of the following processes in muscle? A. Net flux of sodium ions from intracellular space to extracellular space. B. Detachment of myosin h
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