111%20Final%20Exam%20S10%20Green%20Ans - Final Exam Biology...

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Final Exam Biology 111 – Spring 2010 Dr. David H. Bos INSTRUCTIONS: Fill in your BIOL 111 code number and NOT your PUID in the section of the scantron sheet marked: Student Identification Number. The use of calculators, cell phones or other electronic devices is not allowed during the exam. Read each question carefully and choose the best answer. There are 67 questions on this exam. There is only one correct answer for each question. Do not fill in multiple answers, as they will be marked incorrect. Turn in only the answer sheet when you are done. You may keep the exam. Take your time, think and good luck! 1. Vessels that can carry oxygenated blood include: a. Arteries b. Arterioles c. Veins d. Venules e. All of the above 2. If an organism had an impaired ability to control which tissues and cells receive oxygenated blood from the circulatory system, this impairment probably results from: a. Opening and closing of channels that allow diffusion of gasses b. The operation of carriers that actively transport gasses c. Opening and closing of precallilary sphincters d. The direction of blood flow through arteries and veins e. The speed of blood flow throughout the circulatory system 3. What part of hemoglobin is most directly involved the binding of oxygen? a. The alpha chains b. The beta chains c. The gamma chains d. Heme e. Iron 4. If an organism were to spend extended amounts of time at high elevations where the Po 2 was low, which of the following would be a physiological response that allows the organism to more readily bind oxygen to hemoglobin? a. Raise the pH of the blood slightly b. Lower the pH of the blood slightly c. Raise the body temperature slightly d. Produce more lactic acid through fermentation e. Increase the activity of carbonic anhydrase 5. The characteristic sigmoid shape of the oxygen equilibrium curve results from what? a. The enzymatic activity of carbonic anhydrase b. Active transport of oxygen into the blood c. Proton binding to hemoglobin d. Cooperativity of hemoglobin binding sites e. The existence of two circuits in the eukaryotic circulatory system 1
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6. Which of the following comes as a result of the low in Pco 2 in the lungs? a. The diffusion of oxygen from the lungs into the blood b. The formation of CO 2 from carbonic acid c. The binding of H + to hemoglobin d. The formation of carbonic acid from CO 2 e. The diffusion of oxygen from the blood to the lungs 7. What plant structure is responsible for absorption of water and minerals? a. Xylem b. Phloem c. Root hairs d. Leaves e. Tracheids 8. What plant structure is made up of guard cells a. Xylem b. Phloem c. Tracheids d. Stomata e. Root hairs 9. How does water travel through the epidermal cells of a root? a. The apoplast route
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111%20Final%20Exam%20S10%20Green%20Ans - Final Exam Biology...

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