chapter 44 ap bio quiz - Biology, 7e (Campbell) Chapter 44:...

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Biology, 7e (Campbell) Chapter 44: Osmoregulation and Excretion Chapter Questions 1) A marine sea star was mistakenly placed in freshwater and it died. What is the most likely explanation for its death? A) The sea star was stressed and needed more time to adapt to new conditions. B) The sea star is hypertonic to the freshwater, and it could not osmoregulate. C) The osmoregulatory system of the sea star could not handle the change in ionic content presented by the freshwater. D) The contractile vacuoles used to regulate water content ruptured in the freshwater. E) The cells of the sea star dehydrated and lost the ability to metabolize. 2) Organisms categorized as osmoconformers are most likely A) terrestrial. B) marine. C) amphibious. D) found in freshwater streams. E) found in freshwater lakes. 3) The body fluids of an osmoconformer would be ________ with its ________ environment. A) hypertonic; freshwater B) isotonic; freshwater C) hyperosmotic; saltwater D) isoosmotic; saltwater E) hypoosmotic; saltwater 4) Compared to the seawater around them, most marine invertebrates are A) hyperosmotic. B) hypoosmotic. C) isoosmotic. D) hyperosmotic and isoosmotic. E) hypoosmotic and isoosmotic. 5) Which feature of osmoregulation is found in both marine and freshwater bony fish? A) loss of water through the gills B) gain of salt through the gills C) loss of water in the urine D) no drinking of water E) gain of water through food 6) In addition to their role in gas exchange, fish gills are also directly involved in A) digestion. B) osmoregulation. C) thermoregulation. D) the excretion of uric acid. E) the release of atrial natriuretic proteins. 7) All of the following represent adaptations by terrestrial animals to drying conditions except A) anhydrobiosis. B) salt glands. C) efficient kidneys. D) impervious surfaces. E) increased thirst. 8) The digestion and utilization of which nutrient creates the greatest need for osmoregulation by the kidneys? A) protein B) starch C) fat D) oil E) cellulose 3 Figure 44.1 9) Which of the molecules shown in Figure 44.1 represents urea?
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Answer: B Topic: Concept 44.2 Skill: Knowledge 10) Where and from what compound(s) is urea produced? A) liver from NH3 and CO2 B) liver from glycogen C) kidneys from glucose D) kidneys from glycerol and fatty acids E) bladder from uric acid and H2O 11) Which of the following is true of urea? It is A) insoluble in water. B) more toxic to human cells than ammonia. C) the primary nitrogenous waste product of humans. D) the primary nitrogenous waste product of most birds. E) the primary nitrogenous waste product of most aquatic invertebrates. 12) Which of the following is true of ammonia? A) It is soluble in water. B) It can be stored as a precipitate.
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chapter 44 ap bio quiz - Biology, 7e (Campbell) Chapter 44:...

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