DIRECTIONS. BIOL 101 Fall 2010 – EXAM 2DIRECTIONSI.Please do the following on the Scan Tron Answer Sheet (using #2 pencil only):1. In the “Name” space in the top, left hand corner of the scantron: PRINT your last name, then your first name, leaving ONE SPACE BLANK between the last and first name. If your name contains a hyphen, leave it out. DO NOT INCLUDE A MIDDLE INITIAL or MIDDLE NAME!2. Bubble in the circles corresponding to your name (REMEMBER TO LEAVE ONE SPACE BLANK BETWEEN YOUR LAST AND FIRST NAME).3. Fill in your CAMPUS ID in the space provided in the bottom left hand corner of the scantron. Your campus ID is an alpha numeric code that appears on your UMBC Identification Card. The format should include two letters, followed by 5 numbers (i.e. XX#####). 4. Bubble in the circles corresponding to your CAMPUS ID5. CODE THE VERSION OF THE EXAM YOU HAVE BEEN GIVEN INCOLUMN K (You have Version 0)II. Completed exams will be accepted only after comparing ID card with the exam answer sheet.III.Anyone suspected of cheating or aiding another in cheating will have their exam confiscated immediately and will be given a score of “zero”. In addition, further action will be pursued through UMBC’s Academic Conduct Committee and/or the Office of the Provost as described in the Policy for Academic Misconduct in Undergraduate Courses.MULTIPLE CHOICE. Choose the answer that BEST completes the statement or answers the question.1. Facilitated diffusion across a biological (cellular) membrane requires ____________ and moves a substance ________________ its concentration gradient.A. Energy; downB. Transport proteins; againstC. Energy and transport proteins; againstD. Transport proteins; downE. Energy and transport proteins; down2. A cell placed into a flask of water quickly swells and then lyses (bursts). Which of thefollowing is TRUE?A. The cell has a greater concentration of solutes than the surrounding fluidB. The solution in the flask is hypertonic to the cellC. Water has moved by osmosis from inside the cell to outside the cell D. The cell is impermeable to waterE. None of the above (are true)3. The main purpose of cellular respiration is to: A. produce sugar (glucose)B. produce ATPC. produce NADHD. produce carbon dioxideE. produce oxygen4. During a REDOX reaction:A. There is an exchange of neutronsB. A substance that looses electrons is said to be reduced C. Electrons are lost from one substance and gained by anotherD. Osmosis occursE. All of the above5. Which of the following is TRUE regarding ATP?A. The removal of a terminal phosphate from ATP releases energyB. The structure of ATP includes a base, sugar and three phosphatesC. During cellular respiration, some ATP is “spent” (used) in order to make ATPD. ATP drives non-spontaneous reactions in the cellE. All of the above (are true)Please review the chemical reaction (below) before answering question #6.AB + C A + BC6. The chemical equation above illustrates an enzyme catalyzed reaction. Which of the following must occur for the reaction to proceed to completion?A. Substrates AB and C bind to specific sites on the enzymeB. The enzyme changes shape, bringing substrates together in the proper orientationC. The enzyme breaks bonds between substrates A and BD. The enzyme forms a new bond between B and C E. All of the above7. Which of the following illustrates the correct sequence of events during aerobic cellular respiration (from start to finish)?A. Glycolysis, Krebs Cycle, Electron Transport ChainB. Electron Transport Chain, Krebs Cycle, GlycolysisC. Krebs Cycle, Glycolysis, Electron Transport ChainD. Glycolysis, Alcoholic fermentationE. Light reactions, Calvin Cycle8. Which of the following occur(s) during glycolysis?A. Production of CO2B. Reduction of FAD to FADH2C. Production of ATPD. Oxidation of NADH to NAD+E. Splitting of water molecules9. Which of the following is FALSE regarding glycolysis? A. Glycolysis can operate in the complete absence of oxygen B. The reactions of glycolysis are completely spontaneous C. The reactions of glycolysis rely on enzymes to speed up chemical reactions D. The reactions of glycolysis occur in the cytoplasm of the cellE. The reactions of glycolysis have steps involving oxidation/reduction 10. Which of the following does NOT occur during Krebs Cycle?A. Oxidation of organic intermediatesB. Reduction of helper moleculesC. Production of ATPD. Production of O2E. Production of CO2enzyme11. The term anaerobic refers to processes that occur:A. In the presence of CO2B. In the absence of O2C. In the presence of ATPD. In the absence of ATPE. In the presence of O212. Which of the following is common to both aerobic AND anaerobic metabolism?A. Conversion of pyruvate to lactic acidB. Conversion of pyruvate to ethanolC. Conversion of glucose to pyruvateD. Conversion of pyruvate to Acetyl CoAE. The electron transport chainPlease review the figure below, illustrating a part of aerobic cellular respiration, before answering question # 13. 13. What is occurring in the diagram above?A. Electrons are being passed between proteins embedded in the thylakoid membraneB. H+ is diffusing from the matrix into the intermembrane spaceC. H+ is being pumped by way of active transport into the matrixD. The intermembrane space is becoming more acidicE. None of the above14. _____________is/are the ultimate source of energy driving photosynthesis. A. Visible lightB. Ultraviolet lightC. OxygenD. Gamma raysE. Infrared radiation15. The color we see when looking at a pigmented object is:A. The wavelength(s) the pigment createsB. The wavelength(s) the pigment absorbsC. The wavelength(s) used and discarded by the pigmentD. The wavelength(s) the pigment reflects or transmitsE. All the wavelengths in the electromagnetic spectrum16. What is the main function of stomata in plants?A. Absorption of water from the atmosphereB. Intake of carbon dioxide from the atmosphereC. Site of the light reactions of photosynthesisD. Absorption of mineralsE. All of the above17. Which of the following products requires light to be produced? A. ATPB. CO2C. FADH2D. NADP+E. Sugar18. The oxygen we breathe is derived (directly) from:A. PhotolysisB. The Calvin CycleC. The breakdown of CO2D. The breakdown of glucoseE. None of the above19. During the “Z Scheme” of photosynthesis:A. Glucose is produced with the aid of sunlight B. H+ is shuttled into the thylakoid interior by way of facilitated