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- Which of the following is incorrectly matched with its function?The human eye is sensitive to orange light having a frequency of about 5.0 1014 Hz (a wavelength of about 608 nm). What is the energy in joules of the photons associated with this light?In 2003, the Nobel Prize in Physiology or Medicine wasawarded to Paul C. Lauterbur and Sir Peter Mansfield fordiscoveries related to magnetic resonance imaging (MRI).This is a tool to see the structures of the body (not just thenervous system) that depends on magnetic fields associatedwith certain atomic nuclei. The utility of this technique inthe nervous system is that fat tissue and water appear asdifferent shades between black and white. Because whitematter is fatty (from myelin) and gray matter is not, theycan be easily distinguished in MRI images. Visit the NobelPrize website (http://openstaxcollege.org/l/nobel_2) toplay an interactive game that demonstrates the use of thistechnology and compares it with other types of imagingtechnologies. Also, the results from an MRI session arecompared with images obtained from x-ray or computedtomography. How do the imaging techniques shown in thisgame indicate the separation of white and gray mattercompared with the freshly dissected tissue…
- In the experimental setup described in the attached figure (Figure 2.5 of the textbook), the middle panel shows two compartments with 10 mM KCI on the left (inside) and 1 mM KCL on the right (outside), separated by a membrane that is permeable to K+. What would initially happen if you replaced the KCI solutions with NaCl solutions (1 mM on the left or inside and 10 mM on the right or outside)? (A) Inside 1 mM KC Voltmeter Outside 1 mM KCI Permeable to K Nonet Bux of K (B) Initial conditions Initially Inside Outside 10 mM KC 1 mM KC Net flux of K from inside in outside → At equilibrium --58 mY Inside Outside 10 mM KCI 1 mM KC Flux of K from inside to outside balanced by opposing membrare potential Membrane potential (A) -116 [KL] 4 tended change O Na+ would move up its concentration gradient from the left (inside) to the right (outside) compartment. O Na+ would move down its concentration gradient from the right (outside) to the left (inside) compartment. O Na+ would not move because…What are the functions of astrocytes?a)The distribution of sodium ions across the cell membrane of a neuron is 20 mmol/L inside the cell and 200 mmol/L outside the cell. When the system reaches equilibrium, the concentration of sodium ions will be identical on both sides of the cell membrane. What is the standard Gibbs energy difference in the system? Assume the system is at body temperature (37 °C). b)What is the Gibbs energy difference across the membrane in the initial state (prior to reaching equilibrium)?