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UIC BIOS 101 - Exam 1 BioS 101

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1Form AExam 1 BioS 101 9 AM Spring 200819 February 2008 NAME __________________________80 points @ 2 per questionForm A TA Name ________________________Choose the best available choice and mark your answer with a #2 pencil on the accompanying answersheet. Read all choices before answering the question. Turn in both your answer sheet and this examto your TA as you leave. Each question is worth 2 points.1. The Genus is the first word in a scientific name. It is always capitalized. What is the name of thetaxonomic level immediately above (more inclusive than) the genus? (hint: problem set 1) (p7)A. Apomixis B. specific epithet C. Order D. Domain E. Family2. Sperm and eggs are animal reproductive cells, termed ______; all other cell types are referred to as_______ cells. (p. 227)A. embryos, regular B. G1, mitosis C. gametes, somaticD. prophase, interphase E. nasty, OK3. Which two species are most closely related based on the following sequence information? (p10)Species A AGTGCCTAAGCCTATCCATSpecies B AGTACCTATGCCTATTCATSpecies C GGTGCCTAAGCCTATTCATSpecies D AGTAGCTAAGCCTATTGATA. A&B B. A&C C. A&D D. B&C E. None of Above4. Experiments need a ‘control’ which provides an opportunity to make observations on individualsnot receiving the treatment. The evaluation of the effectiveness of new drugs for humans iscomplicated by the observation that the results of the a control group that is given nothing is differentthan a control group given a ‘pill’ with inert ingredients. The necessity of using a ‘control’ group thatthinks it is getting the drug is known as the ________ effect. (#2)A. Scheeper’s B. null C. careful control D. placebo E. wishful5. How many different DNA sequences 6 bases long are possible? (Concept on p57)A. 1024 B. 6 = 1296 C. 4 = 4,096 D. 6 = 46,656 E. over a million4666. Carbon dioxide in the air dissolves rain droplets making the pH of rain water 5.6. What is the pH ofpure water? (p.42)A. 1 B. 5 C. 6 D. 7 E. impossible to answer with available informationBioS 101 9A Spring 2008 Exam 1 2Form A7. You have two different stable isotopes of the same element. Which of the following is the bestdescription of the situation? (p22)A. The two isotopes have the same number of neutrons in their nucleus.B. The heavier isotope will undergo decay.C. Both isotopes can be found in the same compounds and both have the same number ofprotons.D. The isotopes will generally be in different compounds.E. The half life of the lighter isotope will be longer than 1000 years.8. What type of macromolecule is the most reduced (and therefore has the most energy per gram)?(#4)A. nucleic acid B. lipid C. protein D. carbohydrate E. vitamins9. If we graph the proportion remaining on the Y axis and time on the X axis, a constant per capitaprobability of decay (=change = death), i.e., ÄN/Ät•N = -c, gives a curve we describe as?(Curve on p22)A. linear decline. B. linear increase. C. constant.D. exponential decay. E. exponential increase. 10. If a Paramecium can divide twice in an day, how long would it take for a single cell to have morethan a billion (10 = 2 ) descendants? (#7)9 29.9A. 9 days B. 15 days C. 29 days D. 30 days E. 48 days11. The unequal sharing of the electrons in a water molecule results in a covalent bond between theoxygen and hydrogen that is described as ________. (p39)A. hydrogen B. polar C. semi-covalent D. dynamic E. ionic12. What process is essential to natural selection that is not part of the ‘evolution of the universe’ or the‘evolution of learning’ or other forms of change. (#3)A. development B. mating C. translation D. reproduction E. birth13. The two strands of DNA separate when the temperature is raised to 80° C. When the solution ofsingle strands is cooled, the _______________ strands find each other and reform double strandedDNA. (p81)A. antagonistic B. RNA C. complementary D. paired E. energetic14. An ______ is the name for a groundwater resource with a lot of easily extractable water. (#5)A. aquifer B. well C. wetland D. pond E. glacierBioS 101 9A Spring 2008 Exam 1 3Form A15. If the human body is 70% water and the total amount of water entering the body per day is 1 kg perday, about how long does an average molecule of water spend in a person weighing 70 kg? (#5)A. 1 day B. 7 days C. 50 days D. 70 days E. 490 days16. Biological information necessary for function is stored in the _______ of the DNA which iseventually manifest as _______ of amino acids in a protein. A. nitrogen B. bases C. sugar D. sequence E. energy17. _____________ is a new way to discover species that can not be grown in culture. (p590)A. phylogeny B. horizontal transfer C. direct sequencing D. conjugation E. lithotrophy18. Which macromolecule can code information and is known to perform limited reaction functions.For those reasons, it is considered the mostly likely type to be involved in the origin of life? ( p74)A. Protein B. RNA C. Carbohydrate D. DNA E. Lipid19. The Mean(to nearest tenth), Median and Range of the following observations, 5, 5, 5, 6, 7, 8, 8, is:A. 6.3, 6, [5,8] B. 6.6, 6.5, [5,8] C. 6.2, 6.3, [5,8] D. 6.6, 6, [5,8] E. 6.2, 6, [6,8]20. After duplication the DNA a eukaryotic chromosome is in two strands called _____? (p. 233)A. sister chromatids B. haploid chromosomes C. circular chromosomes D. Double stranded DNA E. sister chromosomes21. If the half-life of an isotope is 250 years, how many years later would you expect only 1/16th of theoriginal amount to remain? ( p22)A. 16 years. B. 30 years. C. 250 years. D. 500 years. E. 1000 years22. Heterotrophs get the energy they need by ‘burning’ reduced carbon compounds. The basic equationis sugar plus oxygen is converted to _______ and _______. (p35)22 22 42 2 2A. CO , H 0 B. SO , H 0 C. CH , H 0 D. CO, H 0 E. CO, SO23. Evidence that life begin about 3.8 billion years ago is based not on fossils, but the ratio of C to12C, and the fact that metabolism uses C preferentially to C. C and C are ________ of the element13 12 13 13 12carbon. ( p23)A. isomers B. radioactive isotopes C. stable isotopes D. polymers E. compoundsBioS 101 9A Spring 2008 Exam 1 4Form A24. Koch’s postulates establish a causative link between a(n) _______ and a(n) _______. (p584)A. sequences, phylogeny B. environment, disease C. DNA, diseaseD. microbe, disease E. RNA, earliest life25. A disease is described as _________, if the disease is caused by an


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