ZOOL 3204 Fall 2012 Exam 1 Form 001 PLEASE DO NOT START UNTIL TOLD TO DO SO Once you are told to start please do the following 1 On the scan tron please write your name and student ID CWID in the appropriate sections After your student ID LEAVE A BLANK SPACE and then fill in your lab section number as follows 01 Tuesdays 8 30 02 Tuesdays 10 30 03 Tuesdays 12 30 04 Tuesdays 2 30 05 Tuesdays 6 30 06 Wednesdays 8 30 07 Wednesdays 12 30 08 Wednesdays 2 30 09 Wednesdays 6 30 10 Thursdays 8 30 11 Thursdays 10 30 12 Fridays 8 30 Be sure to fill in ALL of the corresponding circles to ensure that your exam can be graded and your score can be returned to you 2 On the scan tron write 3204 for Course Number and for Sec write the Form of this exam 001 3 There are a total of 45 regular questions on this exam and each question is worth 2 points unless noted otherwise 100 points total There are also 2 extra credit questions each worth 2 points 4 If you have a question please raise your hand and we will come to you 5 When finished please turn in the scan tron TO YOUR LAB TA You can keep this exam copy Darwin Award Nominees 6 Good Luck These instructions are given for good reason failure to follow them could result in up to a 10 point reduction in your grade By taking this exam you consent to OSU s Commitment to Academic Integrity I will respect OSU s commitment to academic integrity and uphold the values of honesty and responsibility that preserve our academic community Page 1 of 9 A B C D 1 4 pts Which of the following are TRUE about the above diagrams a in order from A D they represent epithelial muscle connective and connective tissue b B is an example of cardiac muscle c neuroglial cells can be seen in C d all of the above are TRUE e none of the above are TRUE 2 4 pts Which of the following statements are TRUE for movement across biological membranes 1 facilitated diffusion is movement of molecules from high to low concentration with the aid of membrane spanning proteins i e channels 2 osmosis is net water movement from low solute to high solute concentration 3 diffusion occurs more quickly when concentration gradients are higher 4 diffusion occurs more quickly across membranes with larger surface area than those with smaller surface area a all of the above are TRUE b none of the above are TRUE c 1 and 2 are TRUE d 2 is TRUE e 2 3 and 4 are TRUE 3 4 pts Which of the following statements is TRUE for chemical communication a ectocrines e g pheromones are chemicals produced by one organism to influence another organism b intracrines are chemical messengers that were first identified as important regulators of the immune system c eicosanoids such as prostaglandin are classified as neurocrines d all of the above are TRUE e none of the above are TRUE 4 4 pts The diagrams to the right illustrate tail growth in a 5 wk human embryo A and as seen in an Xray in a 6 yr old girl B Which of the following are TRUE statements regarding these phenomena a both A and B depict extremely rare occurrences b the phenomenon of embryonic tail growth is called lanugo c A is an example of an atavism and B is an example of a vestigial trait d all of the above are TRUE e none of the above are TRUE Page 2 of 9 5 4 pts In the diagram to the right depicting signal transduction and its results the missing TWO possible cellular responses are A change in a 1 glucose metabolism and 2 ATP production b 1 active transport and 2 ion concentrations c 1 motor proteins and 2 enzyme activity d 1 hormone synthesis and 2 tissue repair 1 2 6 Fructose and glycogen are examples of this biomolecular class a carbohydrates b lipids c proteins d nucleic acids 7 Essential amino acids are classified as such because a they are the only amino acids used to make proteins b humans cannot make them and must therefore acquire them from diet c they yield more ATP when metabolized than do non essential amino acids d all of the above e none of the above 8 Within cells the is the site of protein synthesis and the is the site of lipid synthesis a rough endoplasmic reticulum smooth endoplasmic reticulum b golgi complex mitochondria c mitochondria nucleus d rough endoplasmic reticulum nucleus 9 This individual is known for co developing Cell Theory a Bernard b Schleiden c Cannon d Hooke 10 In physiological systems enzymes are proteins that decrease chemical reaction rates so that cells have the necessary time to make use of the products of the reaction a true b false Page 3 of 9 11 The diagram to the right best depicts the relationship between enzyme activity and increasing a enzyme concentration when substrate concentration is constant b temperature c substrate concentration when enzyme concentration is constant 12 In the diagram to the right the process being illustrated is a competitive inhibition b allosteric inhibition c allosteric activation d coenzyme activation 13 In the diagram to the right the enzyme is labeled a ligand b I c active protein and inactive protein d not enough information to tell 14 The diagram to the right depicts a n a carbohydrate b eicosanoid c steroid d amino acid e phospholipid 15 When blood glucose gets too low glucagon from the pancreas is released into the bloodstream causing increased glucose release into the blood Once blood glucose levels increase to a certain point glucagon release is stopped This is an example of a negative feedback b positive feedback c irreducible complexity d all of the above e none of the above 16 This individual coined the term homeostasis in addition to their contributions to our understanding of the emergency stage of the stress response a Cannon b Berthold c Schwann d Bernard 17 is any system of knowledge or understanding that cannot be addressed by the scientific method a science b non science c false science d pseudoscience Page 4 of 9 18 can be defined as changes in genotype frequencies within a population over time a natural selection b artificial selection c atavism d evolution 19 Regarding mutation and natural selection a mutation is one reason that heritable genetic variation exists b mutation is random but natural selection is not c most mutations are neutral natural selection does not act on them positively or negatively d all of the above e none of the above 20 In humans the appendix and goosebumps are examples of a vestigial traits b atavisms c neutral mutations d none of the above 21 A scientific is a testable explanatory statement whereas a scientific is a principle that