exam 1 questions
exam 1 questions Bio 1114
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This 7 page Study Guide was uploaded by Han Truong on Sunday September 20, 2015. The Study Guide belongs to Bio 1114 at University of Oklahoma taught by Dr. Eric Lee in Summer 2015. Since its upload, it has received 51 views. For similar materials see Introductory to Zoology in Biology at University of Oklahoma.
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Date Created: 09/20/15
These are sample questions for Examl These questions do not encompass all the material that we will cover nor will these questions necessarily show up on the exam so please do not simply memorize them but do learn how questions can be asked Use these questions as a guide to assess the level of difficulty you can expect on the real exam The real exam will have anywhere from 30 50 questions depending on the level of difficulty of questions asked Good news is that you ve been exposed to difficult questions from Dayl in the form of Clicker Quizzes Some of these may seem easy in comparison I have made comments in red to guide you through the concepts being tested Here is my first comment to you As long as you enter the exam with this mindset quotI know my shtuff I m ready to think through the problems by applying my knowledge today instead of quotI m ready to recall a bunch of facts I memorized I hope the questions don t require much thinking then you will do fine Do not memorize the periodic table electronegativity chart or chemical structures such as those pictured below If a question requires knowledge of such information it will be provided on the exam Examples of some things that may be provided if necessary 1 2 quotIir III Bulk elements most abundant Atomquot quotumber l3 10079 El Bulk elements less abundant m i Element 4 0026 El Trace elements C symbOI Us 4 12012 Atomic weight 5 6 7 8 9 10 Bayim than him limp up Flu Neon Ll Be B C N O F Ne 6 941 9 0122 10811 12012 141137 159994 10994 20179 11 12 13 14 15 16 17 18 Na Mg Al Si P 5 Cl Ar 22 989 24305 269815 w 35453 39948 19 20 21 22 23 24 25 26 27 28 29 I 31 32 33 34 35 36 m can Samm Tm than chuin m In on tau cm In GaIiIIIII Gmnmiun Ami sni Bmm W K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Gm Ge As Se Br hr 39 098 4008 44956 4790 50942 61998 54938 56347 68933 6871 63548 6538 69723 7259 74922 7896 79904 8380 37 38 39 4O 41 42 43 44 45 46 47 48 49 50 51 52 53 54 m Ytiun ZIImnium mm m Ted39m ln Wm Flmdiun Pam 5w Camum mini Tm 39 Tduium Iain xIm Rb Sr Y Zr Nb Mo T Ru Rh Pd Ag Cd In Sn Sb Te I Xe 85 468 8762 88905 9122 92906 594 99 10107 102905 1064 107868 11240 11482 11869 12175 12760 128 13130 0 E3 ll 2 9 C 5 NH Hii 1TH 9 1 1 2 C 3 NH HCNCO 8 g l I g g H E Ele tr negal39v39ly Adenine A Cytosine C Guanine G Thymine T Uracil U l l Increasing electronegativitydecreasing atomic radius DNA and RNA DNA or RNA only EHZOH HOEVWH H PII 13 HOW 1L1 I39Ig H 1394 Ho OH H bH HbHI HOI cHZOH 6H 6H i1 IH 0H 1394 Ribose Glucose Fructose CSHIOOS C6H1206 36111206 H RI 393 D R R U E5 R6 U I II I ii I ii I I II I Ill I I H E E M I I TIJ I I IH E E H C E lI E I Emu H l l l l l l l l l l H H H H H H H H H H 1 If an atom contains an extra neutron compared to another atom of the same element which measurements does this affect a Atomic Weight b Mass Number c Atomic Number d A and C e B and C This tests your basic understanding of neutrons protons and electrons ability to read the periodic table provided This can be asked in a variety of ways above is just one way of asking this type of question 2 How many covalent bonds would sulfur form with one or more hydrogen atoms a1 b2 c3 d4 e5 To answer this requires you to understand how valence energy shells are arranged and be able to analyze the periodic table and apply the information given to you 3 Which of the following statements isare true a Water expands as it freezes b Hydrophilic substances readily dissolve in water because they are nonpolar c Water molecules tend to stick together exhibiting cohesion d Hydrogen bonds are responsible for the unique properties of water e Two or more of the above are correct Low level question that requires confidence for one to choose E Just eliminate wrong ones as you go 4 A solute moves across a cell membrane from an area of high to low concentration with the assistance of a transport protein What is happening a Endocytosis d Osmosis b Transport in vesicle e Active transport c Facilitated diffusion We haven t covered this material yet While this may not seem like a complicated question this is not a simple definition type question What if the descriptions given about Facilitated diffusion here does not match the one on your flash card or notes Don t memorize but learn the concepts 5 What would be the consequence of having no 02 present during cellular respiration a Increased synthesis of ATP b Glycolysis would stop c Synthesis of ATP would decrease d Glucose would not be oxidized e H would build up in the intermembrane space of the mitochondrion This material will be covered this week This requires that you have a firm understanding of how the cellular respiration works Hint a good way for instructors to test your understanding of a system is to setup a scenario where If component of that system is changedbrokenramped up how would this affect part of that or a related system This question can be rearranged in many combinations Lets rephrase the question You notice that quotSynthesis of ATP is decreased during cellular respiration What would be causing this to happen see how an answer choice can be moved to the question In contrast we are not going to ask your silly quotdid you memorize the figure type questions like quotwhat is the name of that one enzyme involved with step 3 of the glycolysis cycle Also don t try to memorize how many ATPs are produced by glycolysis Krebs cycle ETC 6 What is true about unsaturated fats a They are solid at room temperature b The fatty acid tails easily stack on top of one another c They cannot be liquids because of their kinky structure d They are liquids at room temperature e They have no double or triple bonds between carbon atoms Need to have a firm grasp of lipids Basic Knowledge type question however you need to be confident to rule out 4 wrong answers here So quotkind of knowing something about unsaturated fats may put you in a bind under time pressure 7 Early in the semester we discussed whether popcorn kernels seeds of the corn plant were alive Which one or more of the following would provide evidence that the kernels are living things a They came from another living thing b The kernels undergo respiration give off C02 c If you plant the kernels they will grow into a corn plant d They contain DNA e All of the above would provide evidence that corn kernels are alive Do you know What is life and where you in class that day Low level question 8 Suppose a chemical specifically blocks the ability of protein marked with an X in the figure at right to receive electrons from NADH or FADH but is able to retain all other functions What will the consequence be r F H39v niaui1l m l V J J J Mlm MD MDquot 39h a The pH of the intermembrane compartment will decrease b The Krebs cycle will stop due the lack of NAD c ATP production will stop immediately d Electrons from NADH will still go through to 02 but not electrons from l a I g I FADH2 e3913 39 W e The respiration reactions will start to 39 l quot 39 i 1 go backwards forming glucose from C02 and H20 New material not covered yet Another classic quothere is the entire system what would happen to AD quot a o 5 li39llfl quot J vr v r39 7 if were changed in some way broken ramped up ramped down You need to understand how the electron transport chain works AND how NADFAD connect this system to the Krebs cycle while applying your understanding of chemistry acidbase High level of difficulty Just think through these and work them out take your time Also if an answer choice looks like total nonsense like E it probably is Don t choose them just because they seem to make illogical sense The correct answer to this question in its current configuration is D As you can imagine this question can be reconfigured in countless ways to test your understanding of the same systems Don t memorize 9 On the way to Dr Lee s BIOL 1114 lecture you discover a new unclassified organism Upon further inspection you learn that it is unicellular heterotrophic and contains nuclei Which kingdom or domain might your organism belong to a Domain Bacteria c Kingdom Protista b Kingdom Animalia d Domain Archaea Low level Basic knowledge of taxonomy The following can be compared in a quantitative sense Use the choices below to describe the paired statements questions 9 11 a The first is greater than the second b The second is greater that the first c The two are essentially equal 10 Likelihood that water molecules H20 form hydrogen bonds with each other VS likelihood that methane molecules CH4 form hydrogen bonds with each other 11 Number of hydrolysis reactions required to break up a tripeptide molecule VS number of hydrolysis reactions required to break up a triglyceride molecule 12 The number of phospholipid bilayers a microscopic pin would pass if it entered an animal cell passed completely through a mitochondrion a lysosome a ribosome the nucleus and out the other side of the cell VS 14 Don t panic when you see a chain of questions Just take it one step at a time 10 requires basic knowledge about chemical bonds 11 requires basic knowledge about hydrolysis of polymers to monomers 12 requires knowledge about cell anatomy The reason this may seem more difficult at first than a straight up knowledge type Q is that it requires you to think a little more and make comparisons 13 Which of the following is unlikely to share valence electrons with other atoms a Oxygen b Hydrogen c Nitrogen d Helium e Carbon Basic understanding of periodic table 14 Which would of the following would have the most difficult time passing through a lipid bilayer a 02 b K c co2 d H20 e NH3 Understanding of lipid properties and membrane selectivity in relation to solute properties 15 Which part of the phospholipid bilayer at right is hydrophobic a Part A b Part B c Both part A and part B d Neither part A nor part B Easv 16 Which of the following statements about the phospholipid bilayer is FALSE a Phospholipid bilayers may occur inside a cell or on the outer surface of a cell b Transport proteins may be embedded in the phospholipid bilayer c Each phospholipid has the same number of fatty acid tails as a triglyceride d Cholesterol may be embedded in the phospholipid bilayer e 02 and C02 pass freely through the phospholipid bilayer Which of the following is FALSE type questions are actually 5 separate knowledge questions Just eliminate 17 Suppose an enzyme catalyzes the reaction that attaches a fatty acid to a glycerol molecule The enzyme works at a rate of one reaction every 5 microseconds How long would it take for the enzyme to assemble three complete triglycerides a 5 microseconds d 30 microseconds b 10 microseconds e 45 microseconds c 15 microseconds Knowledge of triglycerides some basic math Just take your time and write out the math on paper instead of trying to do it in your head 18 What is the name of the reaction catalyzed by the enzyme in the previous question a Dehydration synthesis d Hydrolysis b Photosynthesis e Lipid digestion c Respiration Basic knowledge 19 The enzyme mentioned above is made of a atoms b cells c triglycerides d amino acids e A and D Basic knowledge 20 Which of the following organic molecules contains the most potential energy a 5 x Glucose b 2 x Sucrose c 2 x Triglycerides 20 Carbons on each fatty acid chain d 1 x Nucleic acid composed of 5 nucleotides e Not enough information to answer Understanding of potential energy in relation to chemical bonds in various organic molecules Requires a little math but don t panic 21 During glycolysis molecules of glucose are a Broken down into three molecules of pyruvate b Put together to form two molecules of pyruvate c Put together to form three molecules of pyruvate d Broken down into two molecules of pyruvate e Broken down and the carbon atoms liberated as C02 Material not covered yet Basic knowledge 22 Your morning workout includes jogging through your neighborhood While running you now recall correctly that the energy for your muscles is provided directly by an energyrich molecule called a pyruvate b oxygen 02 c ATP d glucose e carbon dioxide C02 23 Jogging during the warm and humid morning temperatures of the summer months always makes you sweat intensely Perspiration aids your body s thermoregulation by allowing heat to be lost through the process of a evaporation b radiation c conduction d percolation e convection 24 While exercising at the gym you notice that people with light complexions turn reddish as they exercise You now know that this is due to the skin s capillaries undergoing to aid with the body s thermoregulation a osmosis b convection c vasodilation d vasoconstriction e radiation 22 24 all require basic knowledge of thermoregulation Remember the case study 25 Cell membranes are made from lipids and often contain proteins The monomers building blocks of these compounds are and respectively a fatty acids amino acids b amino acids nucleic acids c fatty acids glucose d starches carbohydrates e molecules ions Basic knowledge Use this information to answer the following 4 questions As the newest members of the research team at the pharmaceutical company Panacea you and your lab partner are responsible for maintaining the mammalian cell cultures for use in drug trials The other members of the team are investigating whether a new drug quotVersion 76 is toxic to the cells and if so at what levels The active ingredients in the quot76 drug were recently isolated from a type of chemical produced by plants for defense from herbivores You are responsible for growing two groups of cells supplemented with nutrients and vitamins and kept at either 35 C or 37 C Even though these cells have a mammalian origin they have been removed from an organism and can no longer regulate their own temperature 26 For your first experiment you measure the standard rate of ATP production in cells grown at both temperatures You would correctly predict that cells growing in the solution at a temperature of would exhibit a level of ATP production a 35 higher b 37 lower c 35 lower d 37 higher e More than one of the above is correct Experiments conducted by your team reveal that quotVersion 76 inhibits cell metabolism by producing holes in the inner membrane of the mitochondria eventually resulting in cell death 27 The holes produced in the inner membrane of the mitochondria would result in in the H proton gradient between the matrix and intermembrane space of the mitochondria a an increase b a decrease c no change d a large decrease followed by a large increase 28 You would correctly predict that the quotVersion 76quot treatment will result in in cellular ATP production a an increase b a decrease c no change d a temporary increase 29 Which one or more of the following would you correctly predict would eventually stop the production of water by cellular respiration in the mammalian cells a lack of oxygen 02 b an inhibitor that blocks one of the electron carriers in the ETC of the mitochondria c an inhibitor that stops glycolysis d an inhibitor that stops the Krebs cycle e A of the above are correct This chain of questions tests your quotcumulative knowledge If you really think about it they are all basic knowledge type questions but you need to make connections across multiple concepts we ve or will covered and work through the questions via critical thinking I would start by underlining key facts in the introductory paragraph that actually pertain to the questions relax and work out one Q at a time More exams from previous semesters can be found in the ZAP room I do not advise that you memorize all the previous exam questions there are sooooo many Focus on learning the material
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