A young couple brings their newborn in for evaluation of dar…

A young couple brings their newborn in for evaluation of dark spots above the diaper line on the infant’s lower back.  On exam, the spots are hyper pigmented and non-raised. Dad relates he had the same thing as a baby, and they gradually went away.  What is the most reasonable explanation for this presentation? 

5.  Matching. Below are structures of coenzymes and lipids. …

5.  Matching. Below are structures of coenzymes and lipids.  For each structure below, write in the blank provided the number that corresponds to the term that best names or describes it.  (16 pts – 2 ea.)        a) _____                                                                                 b)  _____                            c) _____                                                                                 d)  _____                                                                         e) _____                                                                                 f)  _____                                     g) _____                                                                                 h)  _____                                                                                                 ATP                                                      7.  lipoic acid                            13.  steroid cerebroside                                         8.  leukotriene                          14.  thiamine pyrophosphate coenzyme A                                        9.  NADP+                                            15.  thromboxane FAD                                                   10.  prostaglandin                       16.  triacylglycerol glycerophospholipid                        11.  soap                                      17.  ubiquinone 2Fe-2S iron sulfur center                12.  sphingomyelin                      18.  wax  

6.  For each enzyme-catalyzes reaction below, state the spec…

6.  For each enzyme-catalyzes reaction below, state the specific class of enzyme (i.e. kinase is more specific than transferase) that catalyzes it and give the first and second digits of its EC number.  In the case of hydrolases and ligases, give only the first digit.  (12 pts – 3 ea.)           a)                     class:__________________  EC __.__           b)                    class:__________________ EC __.__-           c)                      class:__________________  EC __.__           d)                    class:__________________  EC __.__  

10.  A man notices that he has steatorrhea (“fatty stools”),…

10.  A man notices that he has steatorrhea (“fatty stools”), which means that his feces contain an unusually large amount of fat.  His doctor diagnoses him as having pancreatic cancer and begins aggressive treatment.  Explain how damage of the pancreas leads to steatorrhea.  (Because this is a digestion question, focus on those digestive processes that are affected.)  (6 pts)