Conceptual question. (Total value = 20 points). Write an essay on ONE of the seven topics (just one!) listed below.     Formatting:Your answer must be in flowing text (not bullet points). Your answer must consist of at least four discrete paragraphs including:an introductory paragraph;two or more “body” paragraphs; anda concluding paragraph. Each paragraph must contain at least two sentences.Topic List:Explain why, in physiological systems, buffers are usually weak acids with a pK value that matches, or nearly matches, the surrounding pH under normal conditions.Explain why the anaerobic metabolism of glucose requires the conversion of pyruvate to lactate.Discuss the relative advantages and disadvantages of creatine phosphate hydrolysis, anaerobic glycolysis and oxidative glucose metabolism as intracellular mechanisms for the production of stored chemical energy (ATP, GTP) and heat.Describe the way in which the protein complexes of the inner mitochondrial membrane restore the proton acceptors, NAD+ and FAD and explain how this process is used, in the aerobic metabolism of glucose, to create a PMF capable of generating substantial quantities of heat and stored chemical energy.Describe, using an example, signal transduction and amplification in a G-protein coupled receptorCompare the processes that lead to the release of hormones from the anterior and posterior pituitary hormones.  Build on this to explain why, when the stalk connecting the hypothalamus to the pituitary hormone is compressed, the compression can result in the hyposecretion of ACTH, TSH, LH & FSH and the hypersecretion of PRL (prolactin), while having little to no effect on the secretion of the posterior pituitary hormones.Describe in detail the hormonal regulation of reproduction in male mammals. Explain why this process sometimes leads to testicular hypertrophy in mammals that breed seasonally.

Mary, a 25-year old woman from Bethel, AK, presents at your clinic with high blood pressure.  Her records indicate that her blood pressure has been elevated for a prolonged period.  A physical exam reveals symptoms that are consistent with hypercortisolism (chronic elevated cortisol levels).You order a blood test and discover that the concentrations of Adrenocorticotropic Hormone (ACTH) and Cortisol in Mary’s blood are BOTH unusually high.Of the following, which is the most likely explanation for Mary’s symptoms?

Carrier proteins are most likely to play an important role in the transport of which of the following hormones?

Faraday law of induction states which of the following?

Retention item, Week 1. A nucleus is MR active when it has which of the following?

Retention item, Week 1. The net magnetization vector arises from which of the following?

Retention item, Week 1. Select all reasons hydrogen is the nucleus used for clinical MR imaging.

Precession is best described as which of the following?

Echo time is defined as which of the following?

Holiday Confections has the following balance sheet figures for the year ending December 31, 2018:              Cash                                                      $1,000              Marketable securities                            5,000              Inventory                                                3,000                                                                            $9,000                Accounts payable                               $2,000              Notes payable                                      1,000                                                                           $3,000   Its net working capital is: