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According to the Nernst equation, the equilibrium potential for any ion (Eion) distributed across a membrane is dependent on the internal (Ionin) and external (Ionout) concentrations of the ion (in moles or grams/liter), the valence of the ion, z (an integer), the absolute temperature (°K), Faraday's constant (96,500 coulombs/mole) and the universal gas constant R according to the following relationship: Eion = (RK/zF)2.303 log ([Ion]out/[Ion]in) Assuming that the equilibrium potential for sodium ion across a skeletal muscle is +66 mv at a temperature of 37°C when the external concentration is 145 mM and the internal concentration is 12 mM, evaluate both the magnitude and appropriate units for the universal gas constant, R.
Promotion - Stages of carcinogenesis The second stage or promotion is reversible and does not include changes in structure of DNA but rather in the expression of the genome of
How does the odor of flower petals help pollination? The purpose of the perfume is to attract a pollinator - insect, bat, bird or whatever. The reward for the pollinator is a m
Q. Do echinoderms have an excretory system? How is excretion done in these animals? Echinoderms do not have an excretory system their excretions are eliminated by diffusion.
Calcium deficiency (hypocalcicosis) Calcium deficiency or hypocalciosis is a sporadic condition occurring in a particular group of animals causing osteodystrophy. Aetiol
Name a system that accomplishes that necessity and explain how that system accomplishes that necessity.
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 Determine the Yersin
Define Interaction of Vitamin D with other Nutrients? Vitamin D metabolism is inter-related with calcium, phosphorous, vitamin K and iron. Let us discuss each of these:
In detail , how does the body maintains the blood calcium ion homeostasis ( including the description of negative feedback system, organs and hormones involved) What is osteoporosi
Create a dichotomous key the following organisms, ant, butterfly, fly, beetle, grass hopper, wasp, ladybug, roach and dragonfly.
Insulin promotes muscle glucose uptake and metabolism. In presence of insulin muscle cells take up glucose and use it as a source of energy. Insulin also promotes storage of insuli
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