Introductory Biology II, Exam I Name:____________________________________
Spring, 2012
Instructions: There are 50 questions; each is worth 2 pts. Write down the best answer for each one. Please
make sure that you fill out your scantron correctly. In case of discrepancy, the answer on the scantron will be
considered your answer. When you’re finished, please hand in the scantron. You may keep the exam. Good
luck!
a___1) Simple cuboidal epithelial tissue has how many layers?
a) one b) two c) three d) four e) impossible to tell
c___2) Epithelial tissue where the cells are flattened in shape:
a) cuboidal b) columnar c) squamous d) platykurtic
d___3) Tissue type that conducts signals throughout the body:
a) muscle b) epithelial c) connective d) nervous e) none of the above
d___4) You have no voluntary control over these muscles:
a) striated b) skeletal c) voluntary d) smooth
c___5) Blood is what kind of tissue type?
a) muscle b) epithelial c) connective d) nervous e) vascular
a___6) True or false: in general, all four tissue types are found in every organ:
a) True b) False
d___7) You stand in the sun to warm up on a cold day. You are absorbing heat through:
a) convection b) conduction c) evaporation d) radiation e) insulation
a___8) Wind chill is an example of heat being exchanged through:
a) convection b) conduction c) evaporation d) radiation e) insulation
b___9) Humans are:
a) ectothermic and homeothermic b) endothermic and homeothermic
c) ectothermic and poikilothermic d) endothermic and poikilothermic
a___10) A lizard is:
a) ectothermic b) endothermic c) mesothermic
a___11) An animal that is truly hibernating (such as a chipmunk or many bats) is (while hibernating):
a) ectothermic b) endothermic c) mesothermic
d___12) An example of a suspension feeder:
a) human b) mosquito c) caterpillar d) blue whale
b___13) An animal that only eats other animals is termed a:
a) herbivore b) carnivore c) omnivore d) frugivore
b___14) Humans are:
a) autotrophic b) heterotrophic c) homeotrophic
a___15) A molecule that has about twice as much energy as most others:
a) fats b) proteins c) carbohydrates d) none of the above
a___16) In the short term, excess energy in the body is stored as:
a) glycogen b) starch c) fat d) protein e) carbohydrates
c___17) Scurvy is cause by insufficient Vitamin:
a) A b) B c) C d) D e) E
d___18) Insufficient vitamin D causes:
a) scurvy b) blindness c) deafness d) rickets e) memory loss
b___19) True or false: amylase is released in the esophagus and helps break down proteins:
a) True b) False
d___20) The epiglottis closes the (choose best answer):
a) nasal passages b) pharynx c) esophagus d) trachea
a___21) True or false: saliva helps lubricate food:
a) True b) False
b___22) Gastric juice has a pH of about:
a) 0 b) 2 c) 6 d) 10 e) 14
d___23) The stomach wall releases (careful!):
a) amylase b) nucleases c) pepsin d) pepsinogen e) lipase
b___24) A muscle that prevents food from backing up into the esophagus:
a) pyloric sphincter b) cardiac sphincter c) esophageal sphincter d) diaphragm
d___25) Bile is stored by the:
a) liver b) pancreas c) stomach d) gall bladder e) bile pouch
a___26) Helps break down carbohydrates:
a) amylase b) nucleases c) pepsin d) pepsinogen e) lipase
b___27) True or false: fats are absorbed by the small intestine and transported to the liver via the hepatic portal
vein:
a) True b) False
e___28) The large intestine absorbs:
a) fats b) nucleic acids c) proteins d) carbohydrates e) water
b___29) True or false: humans have a large cecum:
a) True b) False
c___30) Gastrin causes the release of:
a) pepsin b) pepsinogen c) gastric juice d) alcohol
c___31) Elephants can deal with cellulose because they have a:
a) large cecum b) four part stomach c) really large body/stomach
a___32) True or false: some small salamanders found around here do not have lungs:
a) True b) False
a___33) A counter current exchange system is more efficient because:
a) it never reaches equilibrium b) it reaches equilibrium quicker
c) it can exchange oxygen through osmosis d) it can exchange oxygen in a inverse pump
d___34) Most insects breathe by using:
a) skin b) lungs c) gills d) trachea e) none of the above
b___35) True or false: all turtles breathe using their anus:
a) True b) False
c___36) Helps move foreign particles out of the lungs:
a) pseudopodia b) flagella c) cilia d) none of the above
a___37) Frogs have:
a) positive pressure breathing b) negative pressure breathing c) neutral pressure breathing
a___38) In humans, in order to inhale the diaphragm and ribs need to:
a) contract b) relax
a___39) True or false: Birds can exchange all the air in their lungs with every breath:
a) True b) False
b___40) The impulse to breathe is caused by:
a) insufficient oxygen b) too much carbon dioxide c) too much carbon monoxide
d___41) If you smoke, on average you will die about how many years earlier as a person who does not
smoke?
a) 2 b) 5 c) 10 d) 14
e___42) Smoking can cause all of the following except:
a) lung cancer b) premature wrinkling c) emphysema
d) increased blood pressure & bad cholesterol e) there are no exceptions on this list
d___43) Each year, about how many people die as a result of smoking in the U.S.
a) 1,000 b) 10,000 c) 100,000 d) 440,000
a___44) The single biggest cause of preventable deaths in the United States is:
a) smoking
a___45) In adults, blood coming back from the body enters the:
a) right atrium b) left atrium c) right ventricle d) left ventricle e) lungs
e___46) In the fetus, blood coming back from the lungs enters the (careful - read all options!):
a) right atrium b) left atrium c) right ventricle d) left ventricle
e) little or no blood comes back from the lungs
d___47) Heart sounds are caused by:
a) ventricles contracting b) atria contracting c) a & b d) heart valves closing
b___48) An average resting heart rate for humans is about:
a) 35 b) 70 c) 140 d) 210 e) 500
b___49) The atria enter diastole during:
a) ventricular diastole b) ventricular systole
b___50) The first peak in an EKG/ECG represents:
a) the atria relaxing b) the atria contracting c) the ventricles relaxing d) the ventricles contracting
Reminders:
1) Please put your G-number on the scantron before you hand it in.
2) You may keep the exam.
3) Use blackboard to look up your score (hopefully within 24 hours).