Practice%20Exam%202 - Kata/4 Form A Name(print): BIO 311D...

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Unformatted text preview: Kata/4 Form A Name(print): BIO 311D Spring 2007 Dr. Zhao Name(sign): EXAM 2 SELECT THE SINGLE BEST ANSWER FOR EACH OF THE FOLLOWING: (2.5 points for each question) 1. When an animal encounters an antigen for the second time, it is capable of producing a massive and rapid immune response to the antigen. The cells responsible for this rapid response are called cells. a. memory b. effector c. humoral d. immunization e. antigenic 2. Which of the following activities is not normally involved in preventing pathogens from infecting the mucous membranes of Human? a. Beating cilia b Lysozyme production c. Secretion of HCl d. Secretion of interferon e. none of the above 3. Pathogens that reach the digestive tract are often destroyed by a. saliva. b. B cells. c. stomach acids. d. T cells. e. Both a and c 4. Cnidarians a. have radial symmetry. b. have gastrovascular cavities c. have hemolymph d. all of the above. e. both a and b. in multicellular animals was bilateral. segmented. unilateral. dorsal—ventral. radial. (DQOC‘W 10. ll. 12. Gas (DQOU'ED The (DQ—OU‘QJ One (DQOU'Q) The exchange in animals always involves extra—cellular respiration. breathing movements. muscular control of exchange. diffusion across membranes. active transport of gases. respiratory system of insects consists of branched air tubes called spiracles that supply capillaries. branched air tubes called tracheae that supply capillaries. branching gill systems that end in openings called tracheae. branching gill systems that end in openings called spiracles. extensive layers of gas exchange tissue of the skin. effect of cigarette smoking on the respiratory system is to remove mucus from the airways. immobilize cilia lining the airways. speed air flow through the airways. increase the production of the C02. increase surface area in alveoli. retrovirus HIV specifically destroys Helper T cells and thus disrupts a. b c. d e the humoral immune response. the cellular immune response. both the humoral and cellular immune responses. the inflammatory response. the complement cascade. When the receptor of a helper T cell binds to a pathogen being presented on a macrophage, it a. b. c. d. e. activates itself. secretes interleukin—2. activates B cells. All of the above b and c only. Which of the taxa below contains the largest number of a b. c. d. e. species? bacteria parasitic worms insects vertebrates fishes The lungs expand in inhalation because (00.0651: the diaphragm contracts upward. the shoulder girdle moves upward. the volume of the chest cavity increases. lung tissue actively stretches. the lung tissue rebounds from exhalation. 13. 14. 15. 16. 17. 18. a. bound with hemoglobin. b. as dissolved gas. c. as HC03-. d. as H2CO3. e. as calcium carbonate. b. elephants c. earthworms d. flatworms e. ducks a. Flame cells of flatworms b. Metanephridia of the earthworms c. Malpighian tubules of insects d. nephrons of the human kidney e. All of the above During filtration, which of the following does not capsule from the bloodstream? enter Bowman’s a. Water b. Glucose c. Ions d. Amino acids e. Plasma proteins colon or large intestine is a. the digestive breakdown of foods. b. to absorb nutrients from foods. c. to house parasitic bacteria. d. the secretion of bile and enzymes. e. to reabsorb water. b chyme. c mucus. d pepsin 20. Beer contains ethyl alcohol, which inhibits ADH production. After consuming beer, the kidney produces a. copious concentrated urine. b. a small volume of concentrated urine. c. a small volume of dilute urine. d. copious dilute urine. e. None of the above 21. What generally maintains the electric charge across the neuronal membrane? a. Sodium-potassium pump b. Action potential 0. Resting potential d. Voltage—gated channels e. Negative ion pump 22. During depolarization, the neural membrane potential is restored when a. Na+ ions rush outward through the membrane. b. K+ ions rush outward through the membrane. 0. Cl~ ions rush inward through the membrane. d. a pump moves ions to their original concentrations. e. the membrane becomes freely permeable to many ions. 23. The myelin sheath that surrounds some axons in the peripheral nervous system is formed by a. neurons. b. Schwann cells. oligodendrocytes. synapses. None of the above (00.0 24. Which term refers to organisms that depend largely on external sources of heat to maintain body temperature? a. Homeothermic b. Endothermic c. Heterothermic d. Ectothermic e. None of the above 25. Certain amino acids are called essential amino acids because they a. are required for making protein. b. cannot be made from other amino acids and must be obtained from food. are universally needed by all animals. c. d. are essential as an energy source. e. are required for making nucleic acids. 26. In which order are stored fuels utilized during starvation? a. Fats, glycogen, proteins b. Glycogen, proteins, fats c. Proteins, fats, glycogen d. Fats, proteins, glycogen e. Glycogen, fats, proteins 27. Which type of tissue is responsible for secreting saliva? a. Connective b. Epithelial c. Matrix d. Muscle e. Nervous » . " W ‘ Bonn. : ‘ mm ® m: 5,4 M an Monocyte Th pmg "W t ¢ ¢ $ 1 2 a 4 29. Refer to above Figure. Which of the following is true of cells from path 3 (thymus) in the accompanying figure? a. produce memory cells b. produce cytotoxic and helper T cells c. migrate to the lymph nodes d. directly responsible for cell—mediated immunity e. All of the above 30. In an open circulatory system, a. there is no heart. b. there is a gastrovascular cavity. c. there are no blood vessels. d. blood flows out of the body 31. In humans, which vessel empties into the right atrium? a. Pulmonary veins b. Anterior vena cava c. Posterior vena cava d. Pulmonary artery e. Both b and c 32. The most abundant cells in the blood are a. erythrocytes. b. leukocytes. c. phagocytes. d. platelets. e None of the aboveA 33. Which of the following statements about gastrovascular cavities is false? a. Organisms with gastrovascular cavities tend to be only a few cells thick. b. Gastrovascular cavities are highly branched. c. Gastrovascular cavities are filled with interstitial fluid. d. The diffusion path length in organisms with gastrovascular cavities is usually short. e. Flatworms have gastrovascular cavities. 34. Homeostasis refers to the tendency to keep the body systems a. matched to the external environment. the same metabolic rate. at a steady state over time. under the control of the brain. at the same temperature anytime. m 0.0 U For short answer questions, give concise, intelligible answers; complete sentences are not necessary. (2pts) The human central nervous system is composed of the brn’wt (‘6’ “W” 5P "MU" CW4 \ The peripheral nervous system is composed of 58"" S D rj neurons that transmit a. mechanical breakdOWn of food M ()3 Lack StomaCh5 M b. storage of food 0. production of digestive enzymes d. absorption of nutrient molecules e. absorption of water f. production of a lot of acid Small intestine: C 2 Ci Large intestine: (6.5 pts)Labeling Put the names b S tO'mwck W" W Pmorewi WW L arfie ‘m‘M St‘mev 5 wall, gm’tz<.°$t?446, 3. the long U turn; functions in water and salt reabsorption 4. collects filtrate from the blood estivation 5. secreted by pancreas D. E. ectotherms . absorb heat from surroundings F. Bowman's capsule . secreted by liver ...
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Practice%20Exam%202 - Kata/4 Form A Name(print): BIO 311D...

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