This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: 1/30/07 Professor Wasserman BILD 2 Fill in your name and student ID # on the Scantron sheet, (use zero in place of "A" in the PID. Mark all answers on the Scantron. Section I. Multiple Choice Choose the single best answer (A,B,C,or D) for each question. [25 Questions, 8 Points Each] 1. Increasing surface area of the alimentary canal facilitates which of the following digestive processes? A. hydrolysis B. ingestion C. absorption D. elimination 2. The first event that a doctor would listen for in the process shown to the right would be the noise made by blood A. Flowing during ventricular relaxation B. Flowing after activity of the AV node C. Recoiling against the atrioventricular valves D. Recoiling against the semilunar valves 3. Which of the following sequences does NOT indicate a DIRECT pathway that blood might follow in mammalian circulation? A. right ventricle to pulmonary artery B. left ventricle to aorta C. pulmonary vein to left atrium D. right ventricle to pulmonary vein 4. All of the following are true about surfactant except that it A. is produced during the first three months of pregnancy B. functions where air contacts cell surfaces C. is made up of amphipathic molecules D. is required throughout adult life 5. How does the digestion and absorption of fat differ from that of carbohydrates? A. Processing of fat does not require any digestive enzymes, whereas the processing of carbohydrates does. B. Carbohydrates need to be emulsified before they can be digested, whereas fats do not. C. Most absorbed fat first enters the lymphatic system, whereas carbohydrates directly enter the blood. D. Fat must be worked on by bacteria in the large intestine before it can be absorbed, which is not the case for carbohydrates. 6. Gas exchange in animals always involves A. breathing movements. B. cellular respiration. C. active transport of gases. D. diffusion across membranes. 7. Which of the following helps to return blood to the heart? A. high fluid pressure in the veins B. contraction of muscles surrounding veins C. varicose veins D. high cross sectional area in the veins 8. In the figure to the right, the three arrows could depict the movement of all of the following except A. Nucleotides B. Peptides C. Polysaccharides D. Digested and solubilized fatty acids 9. The most muscular chamber of the heart is A. the right atrium B. the right ventricle C. the left atrium D. the left ventricle 10. All of the following are reasons why gas exchange is more difficult for aquatic animals than it is for terrestrial animals EXCEPT: A. Gills collapse in air. B. Water is denser than air. C. Water is more viscous than air. D. Water contains much less O 2 than air per unit volume....
View Full Document
- Spring '08