ZOOL 3204 Fall 2012 Exam 2 Form 002 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 This will allow the TA s to return your scores in lab Grades also will be posted on D2L 2 On the scan tron write 3204 for Course Number and for Sec write the Form of this exam 002 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 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 8 1 4 pts Regarding Berthold s experiments with male chickens 1 castrated male chicks did not develop rooster typical appearance or behavior 2 male chicks that were castrated and received a transplanted testis i e from another chick did not develop rooster typical appearance or behavior 3 castrated and re implanted i e received their own testis back chicks developed into normal roosters 4 Berthold concluded from his results that the nervous system not the blood carries a critical message for normal male sexual differentiation 5 Berthold hypothesized that a chemical from the brain must be responsible for initiating sexual differentiation a all of the above are TRUE b none of the above are TRUE c 1 and 2 are TRUE d 1 and 3 are TRUE e 3 4 and 5 are TRUE 2 4 pts Which of the following is TRUE concerning neuron physiology 1 action potential conduction on axons is one way only 2 action potentials are produced every time a graded potential reaches the axon hillock trigger zone 3 graded potentials are inhibitory only whereas action potentials are excitatory only 4 myelin sheaths cause electrical conduction to slow down along axons 5 graded potentials lose strength with distance in part because of cytoplasmic resistance a all of the above are TRUE b none of the above are TRUE c 1 2 and 3 are TRUE d 3 4 and 5 are TRUE e 1 and 5 are TRUE 3 4 pts Given the anatomy what do we know about the neurons to the right a they conducts action potentials via saltatory conduction b they possess myelin sheaths made by oligodendrocytes c they are from the central nervous system d all of the above e none of the above 4 4 pts Which of the following is an accurate interpretation of the sample data below a A B and C are antagonistic hormones b A B and C are synergistic hormones c A demonstrates a permissive effect on B and C d C demonstrates a permissive effect on A and B Hormone A B C A B A B C Measured Effect minimal minimal no detectable effect minimal full normal effect Page 2 of 8 5 4 pts In the diagram to the right a damage to A would lead to problems with vision b damage to B would cause problems with motor output c C is the auditory cortex association area d D is responsible for movement coordination e E is the gustatory taste cortex 6 An example of an endocrine pathology that results from hyposecretion of hormone is a androgen insensitivity syndrome b acromegaly c gigantism d all of the above are examples of hormonal hyposecretion e none of the above are examples of hormonal hyposecretion 7 Which of the following is TRUE about androgen insensitivity syndrome AIS a it is due to a lack of testosterone production b both females and males can express AIS c individuals with AIS have a chromosomal sex that does not match their morphological e g genital sex d all of the above are TRUE e none of the above are TRUE 8 As reviewed in lecture studies have demonstrated that testosterone can influence behavior AND that behavior can influence testosterone in human males a true b false 9 A hormone that is made from the amino acid tyrosine but behaves more like a steroid is a growth hormone b melatonin c inhibin d thyroid hormone e testosterone 10 The hormone to the right is a melatonin b a catecholamine c testosterone d thyroid hormone 11 A hormone that is made on demand requires a carrier in the bloodstream and can interact with intracellular receptors is a a steroid b a hormone made from amino acids c not enough information to tell 12 A hormone that can interact with membrane receptors is a a steroid b a hormone made from amino acids c not enough information to tell Page 3 of 8 13 In the diagram to the right the structure labeled 13 is the and it secretes hormones such as a anterior pituitary prolactin b hypothalamus gonadotrophin releasing hormone c posterior pituitary growth hormone 14 In the diagram to the right the structure labeled 14 is the and it is made of a anterior pituitary endocrine tissue b posterior pituitary endocrine tissue c posterior pituitary nervous tissue d hypothalamus nervous tissue 15 is a neurohormone that plays a role in smooth muscle contraction e g in the breast as well as affiliative behavior a prolactin b vasopressin ADH c aldosterone d oxytocin e luteinizing hormone LH 16 The produces steroids as well as amino acid based hormones a pancreas b adrenal cortex c hypothalamus d thyroid gland e gonad 17 The tissue to the right produces the hormone a ghrelin b cortisol c leptin d all of the above e none of the above 18 Insulin and glucagon are hormones a synergistic b inhibitory c permissive d antagonistic 19 Concerning endocrine disruptors a exposure may be intentional or unintentional b most of the ones discovered that result from unintentional exposure disrupt estrogen pathways c CAFO s and untreated waste are common sources d all of the above e none of the above Page 4 of 8 20 is are known to disrupt androgen pathways whereas is a common component in plastic that was actually originally developed as an estrogen agonist a organochlorine