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Q1. A spherical ball of solid, nonporous naphthalene (as in a "moth ball") is suspended in still air; naphthalene ball slowly sublimes, releasing the naphthalene into the surrounding air by molecular diffusion limited procedure. approximation the time required to reduce the diameter from 2 cm to 0.5 cm when the surrounding air is at 347 K and 1.013 x 105 Pa. Naphthalene has a molecular weight of 128 g/mole, a solid density of 1.145 g/cm3, a diffusivity in the air of 8.19 x 10-6 m/s, and exerts a vapour pressure of 5 torr at 347 K.
Q2. Excess dietary fat could be converted to cholesterol in the liver. When palmitate labelled with 14C at every odd-numbered carbon is added to a liver homogenate, where does the label show in mevalonate?
Why does the loop of henle have the long narrow shape? Some desert-adapted animals produce a very concentrated urine. How are their kidney different?
The calculation of interaural time difference (ITD) is often modeled as a cross correlation. Re-write the cross-correlation equation in terms of ITD.
Drag the ADH bottle cap to the gray cap on the top right side of the nephron tank, and release it to dispense ADH. Click Start, and allow the run to complete. Click Record Data. In this run, how does the volume of urine differ from the baseline measu..
List in order the higher taxons used in classification (domain, kingdom, phylum, genus, species) List the 3 domains and how they differ. Describe uses and effects of microbes for man.
The proper functioning of your immune system depends on two processes termed clonal deletion and clonal selection. What do these terms mean, how do these processes work, and what is the role of each in your immune system?
Define membrane potential (Vm) and sodium equilibrium potential (ENa). Which of these, if any, changes during the course of an action potential?
State the key products of the Kreb's Cycle and how various of each there are starting from 1 glucose molecule.
Suppose that plate tectonics and continental drift is in fact occurring, as explained by the convection current hypothesis, what is likely true with regards to relative ages of Atlantic and Pacific oceans?
Sinorhizobium meliloti can be protected from osmotic stress by the presence of certain disaccharides. Dan Orr found that sucrose does a fine job as an osmoprotectant for our strain of S. meliloti,
The energy stores in proteins, that can be used to make ATP, can only be extracted in what part of our cells, The energy stored in lipids that can be used in ATP
why arent the magnifications of both oclar lenses of a binocular microscope used to calculate total magnification?
Describe in detail about cell wall and nucleooid of bacterial cell, their structure and composition.Explain the difference between ionic and covalent bonds.
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