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Unformatted text preview: EXAM II PRACTICE TEST Multiple Choice (2.5pts each) 1. Radial or bilateral symmetry is determined by the A. Type of motility of the organism B. Form of the organism during the embryonic phase C. Form of the organism during the adult phase D. Form of the gametes E. Both A and B 2. What was the cause of diversification during the Cambrian Explosion? A. HOX Genes B. Changing predator prey relationships C. Changing levels of oxygen D. All of the above E. None of the above 3. What animal must eat the largest proportion of its body weight each day? A. Buffalo B. Elephant C. Lion D. House cat 4. The advantages of having a closed circulatory system is/are A. High rate of delivery of nutrients and removal of wastes B. Direct chemical exchange between hemolymph and body cells C. Requires less energy to build, operate, and maintain D. A lower pressure system 5. A person can be overnourished and malnourished (T/F) 6. The velocity of blood flow in the capillaries slows down because A. Functionally, the diffusion of oxygen and wastes is a relatively slow process B. Differences in partial pressures C. The large cross‐sectional area of the capillaries D. Both A and C E. All of the above 7. Based on your knowledge of the heart as a pump, what does Systolic Blood Pressure mean? A. The pressure in the veins during contraction B. The pressure in the veins during relaxation C. The pressure in the arteries during contraction D. The pressure in the arteries during relaxation 8. Which of the following is not a type of connective tissue? A. B. C. D. E. Fat Blood Bone Cartilage Muscle 9. Which term describes the overall flow and transformation of energy in an animal A. Homeostasis B. Positive Feedback C. Bioenergetics D. Steady State E. Meridian Lines 10. Animals that generate heat by metabolism are A. Endotherms B. Mesotherms C. Ectotherms D. Amphibians E. Both A and D 11. Which of the following is not an essential nutrient? A. High Density Lipoproteins B. Saturated Fats C. Amino Acids D. Oxygen E. Minerals 12. Peristalsis and mastication are functions of the A. Reproductive system B. Digestive system C. Circulatory system D. Respiratory system 13. In the stomach, chief cells excrete __________ while Parietal cells excrete _____________. A. Pepsin; Hydrochloric Acid B. Pepsin; Amylase C. Hydrochloric Acid ; Pepsin D. Amylase ; Lipase E. Amylase ; Pepsin 14. Generally speaking for ALL organisms, respiratory surfaces must be A. Exposed to the environment B. Large multilayer cells C. Able to filter oxygen from water D. Moist 15. Which of the following is not a principle of the respiratory system? A. Diffusion of oxygen from the medium into the blood B. Diffusion of oxygen from the blood into cells C. Carbon dioxide follows a reverse path D. Diffusion of carbon dioxide into cells E. Transport of oxygen to the tissues and cells of the body 16. Which of the following describes the path of air in the human respiratory system? A. Pharynx: Larynx : Trachea : Bronchi : Alveoli B. Nasal Cavity : Larynx: Bronchioles : Trachea : Alveoli C. Larynx : Pharynx : Trachea : Bronchi : Alveoli D. Pharynx: Larynx : Pleural Cavity : Bronchioles : Bronchi 17. Which part of the circulatory system contains oxygenated blood? A. Inferior Vena Cava B. Superior Vena Cava C. Pulmonary Vein D. Pulmonary Artery E. Right Atrium 18. Consider a human’s respiratory mechanism. During inhalation, which of the following occur: I. Muscles in the chest wall contract II. The diaphragm relaxes III. The air pressure in the lungs is reduced IV. The diaphragm moves downwards A. I, II, III B. I, III, IV C. II, III, IV D. II, III E. II, IV F. I, III G. I, IV H. III, IV I. All of the above 19. Which of the following does not cause Mountain Sickness? A. Oxygen starvation B. Loss of carbon dioxide C. Increased altitude D. Decreased atmospheric pressure E. Mountain sickness is caused by all of these 20. Which of the following is not a main function of the excretory system? A. Osmoregulation B. C. D. E. Homeostasis of extracellular fluid Elimination of nitrogenous wastes Maintaining balance of solutes in body fluids These are all functions of the excretory system 21. Imagine you have two containers filled with water. You dump a mole of solid Sodium Chloride in one container, and a mole of solid Calcium in another container, which solution has the higher osmolarity? A. The container with Sodium Chloride B. The container with Calcium C. Both containers have the same osmolarity 22. The process of filtration in the kidneys involves A. Active transport B. Passive transport C. Facilitated Diffusion D. Osmosis 23. Many different organs in the body can be surgically removed due to disease or illness. Which of the following does not allowed in a “normal” life to be removed? A. A kidney B. A lung C. An adrenal gland D. The liver E. The gall bladder 24. Which of the following is NOT a type of signaling molecule? A. Local regulators B. Pheromones C. Hormones D. Osmoregulators E. Neurotransmitters and Neurohormones Matching section (2pt each) Write your answer on your exam (not scantron). For each description of development, choose either protostome (A) or deuterostome (B) 25. The blastopore eventually forms the anus B 26. Radial Indeterminate cleavage B 27. Schizocoelous development (solid masses of mesoderm split to form coelom) A Choose the term that best matches the description below. Answers may be used only once. A. Fat B. Carbohydrate C. Bicarbonate D.Protein E. Carbonic Acid F. Osmoregulator G. Osmoconformer I. Posterior Pituitary J. Pancreas K. Hypothalamus 28. The main buffer found in mammalian blood. C 29. Freshwater snails F 30. Control center of the endrocrine system K 31. Has the highest amount of energy per gram when digested in the human body. A 32. Macromolecule that begins digestion in the mouth B SHORT ANSWER (20pts): 33. Compare the early development of a snail (a mollusk) and a human (chordate). 34. Give three examples in the human body where a large surface area affects function and explain how they affect this function. 35. Pick either the human male sperm, or the human female egg. Describe its path from development to fertilization. 36. You are suddenly startled by a large bear in the woods. Discuss the effects in the endocrine system and the body as a whole that occur due to this stimuli. 37. ESSAY (8pts): Imagine an alien species with the following physical and environmental constraints. Discuss briefly the type of systems you would most likely find (Make sure you cover the Circulatory, Respiratory, Digestive, and Excretory systems). The planet is dry, has large variations in temperature and a very strong gravitational pull. The organism itself is relatively large and very active. (OPTIONAL): The REPLACEMENT Question: (2pt) Please write a short answer question that you expected to see on this exam, but didn’t appear, then answer it. Please note: The question and answer must be significantly different from questions asked above and definitions of words, True/False, multiple choice questions are not acceptable. Question: Answer: ...
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This note was uploaded on 07/25/2011 for the course BIO 311 D taught by Professor Zhao during the Spring '08 term at University of Texas at Austin.

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