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Study Resources (Chemistry)

  11) In the 1950s a large outbreak of Epstein- Barr virus occurred in certain parts of Africa. Shortly thereafter, in the same areas there was a large upswing in the incidence of Burkitt's lymphoma, a cancer. What characteristic was that virus demonstrating? A) lytic infectionB) latent infection C) transformation infectionD) persistent infection11) 12).
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  23)Explain how antibiotics are used to treat bacterial infections. What are some of the problems concerning the use of these drugs? 24)A new antibiotic is introduced that will destroy only organisms lacking a nuclear membrane. A dispute develops over its safety when used in people. What arguments would you use in.
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  1) Which of the following is true of diabetes mellitus type 1? A) It can be delayed or prevented. B)Patients always require insulin. C)Cells become resistant to insulin. Most people with diabetes mellitus have this form.1) 2) This is the major cause of type 2 diabetes. A) insulin resistanceB) viral infection C) being underweightD) heart disease2) 3).
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  61)Paul, physically inactive and obese, suddenly dropped to the ground. His friends called 911, and the emergency medical technicians arrived. An emergency medical technician (EMT) quickly began to perform an EKG on Paul and saw many rapid, irregular waves where individual QRS waves should have been. Based on the information.
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    1)Which of the following can be defined as small proteins that are secreted from virally 1) infected cells to prevent the spread of the infection? A)macrophageB) interferons C) mast cellsD) immunoglobulins 2)Which of the following is not a strategy of the body to defend against foreign organisms and               2) cancer.
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  37) A(n) ________ is a recording of the electrical activities of the heart.37) 38) Swollen lymph nodes signal infection and result from increased numbers of ________.38)   39) Because the sinoatrial node sends out impulses that initiate each heartbeat, it is often referred to as the ________ of the heart.              39) 40) The ________.
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  21) What would happen if the trachea did not have cartilaginous rings?21) A)Sense of smell would be lost, and food would taste funny. B)Incoming air would not be humidified. C)Incoming air would not undergo filtration. D)The trachea would collapse. 22) Sometimes premature babies suffer from respiratory distress syndrome. What substance would you administer in a.
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  46)Allergy shots require many injections over long periods of time to be effective. Why can't the body get over an allergy with just a couple of injections? 47)One type of bacteria, called gram- negative bacteria, has a pyrogen molecule that is part of its membrane structure. This endogenous pyrogen is released.
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  29) Cardiac muscle cells connect to each other at special junctions called ________ disks.29) 30) A ________ is the device that is used to measure blood pressure.30) 31) The ________ valves prevent blood from flowing back into the heart once it has left the ventricles.              31) 32) A heart ________ is an indication.
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  11) Which of these is the portion of the heartbeat that involves contraction of the heart?11) A) diastoleB) cardiac cycleC) pacemakerD) systole 12) Blood vessels that serve as gateways to capillary beds are ________. A) arteriolesB) arteriesC) venulesD) veins12) 13) Which of these are the smallest of veins that form when capillaries merge? A) veinsB).
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  43)Veins that carry oxygenated blood from the lungs to the heart. 44)System that consists of both the cardiovascular and the lymphatic systems. 45)The site where certain lymphocytes mature, enabling them to fight specific disease- causing organisms. 46)This simple practice will reduce your chance of heart disease and stroke. 47)Vessels that carry blood back to.
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1) Some of these blood proteins are antibodies. A) globulinsB) fibrinsC) glucosesD) albumins1) 2) George is stuck out in the hot, dry desert without any water, and he is sweating a lot. Which of these components of the blood should decrease? A) red blood cellsB) glucoseC) plasmaD) platelets2) 3) Which of these is part.
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  1) For which of these patients might Dr. Singh most appropriately prescribe a diuretic? The numbers represent their blood pressures. A) 120/80B) 140/80C) 110/70D) 168/941) 2) Which of the following lifestyle changes might be used to treat or prevent high blood pressure? A)control body weight B)exercise regularly C) healthy diet D) All of the above.
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  11) The condition in which walls of the alveoli break down, thereby creating fewer and larger11) chambers, is called ________. A) emphysemaB) influenzaC) TBD) bronchitis 12) Which enzyme speeds up the formation of carbonic acid from carbon dioxide and water? A) hydrogenaseB) carbonic anhydrase C) cyclo- oxygenaseD) carboxylase12) 13) You are at a restaurant, and a.
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  35)The skin barrier is part of this line of defense. 36)Line of defense in which the production of antibodies is involved. 37)If you have a parasite, these white blood cells go into action. 38)These white blood cells arrive first in the attack against invaders and consume the pathogens. 39)Effector T cells responsible for the.
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  Match each definition in the first column to the correct term in the second column. 45)The portion of the upper respiratory system that provides the passageway for food and air. 46)These muscles contract to help inflate the lungs by moving the ribs. 47)A sheet of muscle that separates the thoracic cavity and abdominal cavity and helps.
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  11) The liquid portion of the blood that consists of about 55% of the total volume of blood is11) A) plateletsB) stem cellsC) plasmaD) leukocytes 12) Infectious mononucleosis is caused by ________. A) Epstein- Barr virusB) blood doping C) lead poisoningD) pernicious anemia12) 13) To which of the following substances does hemoglobin most readily.
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    21)Antigens are substances that the immune system does not recognize as self. Which of the              21) following are antigens? A)strep throat bacteriaB) HIV C) cancer cells in the lungD) All of these can act as antigens. 22)According to preliminary tests, Alexandra has liver cancer, but the mass is inoperable and              22) hard to.
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26) If all of these hairlike structures, called ________, in respiratory passages suddenly stopped working, a person would probably have more respiratory infections.              26) 27) ________ are less discriminating than some phagocytic cells and attack and kill anything not recognized as part of the body.              27) 28) ________ are molecules that signal.
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    17)A(n) ________ is a global outbreak of disease.17) 18)A(n) ________ is an animal that carries a disease from one host to another.18) 19)________ are disease- causing organisms that invade a person's body.19) 20)Infectious proteins that are heat resistant and that cannot be destroyed by ultraviolet20) light or most chemicals are known as ________. 21)________.
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  35) Long protein strands that form a web that traps blood cells and platelets to form a clot are called ________.              35) 36) The granulocytes are white blood cells that include ________, ________, and ________.36) 37) The ________, or thrombocytes, play a vital role in clotting.37) 38) Platelets are formed when fragments from.
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  27) Plasma ________ make up about 7% of the plasma and help balance water flow between the blood and the tissues.              27) 28) A person who cannot make enough of the plasma protein ________ might have problems with water balance.              28) 29) ________ is the group of white blood cells that lacks.
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  1) A certain infectious disease can cause swellings on the aortic semilunar valve. The valve will then fail to close properly, resulting in ________. A) aneurysmB) backflowC) varicose veinsD) atherosclerosis1) 2) Which of the following causes blood to move through veins? A) contraction of skeletal muscle B) vasodilation C) contraction of smooth muscle.
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  1) Which of the following is a thin- walled, rounded chamber surrounded by a vast network of capillaries? A) alveolusB) glottisC) surfactantD) diaphragm1) 2) Giovanni is resting peacefully after a long day of hard work. Assuming he is otherwise healthy, what would be the volume of his ventilations? A) 4500 to 6000 mlB).
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  25)Tetracycline antibiotics are frequently included in commercial poultry feed. Why is the practice unwise for human health in the long run? 26)In some cultures, parts of the central nervous system (e.g., brains) of cattle are popular foods. Predict the issues that might arise from this practice.     .
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  13)Susan Littlehorse (28 years old, obese, and pregnant) complains of burning urine to you, her physician at the Indian Health Service. Blood tests show hemoglobin A1c concentrations over 9%. What is your initial diagnosis? How do you test your idea? How should her condition be treated? What are some potential.
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  1) A disease or condition with clinically distinct symptoms, whose incidence has increased, especially in the past two decades, is called ________. A) stagnatingB) reemergingC) emergingD) declining1) 2) Cholera is spread by contaminated food and water. The bacterium kills by changing the permeability of the cells of the large intestine. Which therapy.
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