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1 | |
1. Curare is a South American arrow poison that causes skeletal muscle paralysis and difficulty in swallowing.
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| | A) | True
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| | B) | False
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2 | |
2. ________ found in milkweed are poisonous to livestock, humans, and birds but not monarch butterflies.
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| | A) | a. Cystines
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| | B) | b. Cardioactive glycosides
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| | C) | c. Cicutoxins
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| | D) | d. Grayanotoxins
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3 | |
3. The plant toxin monocrotaline
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| | A) | a. protects caterpillars from spiders.
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| | B) | b. causes paralysis and asphyxiation in cattle.
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| | C) | c. is transferred from male to female moth during copulation.
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| | D) | d. all of the above.
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| | E) | e. only a and c are correct.
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4 | |
4. Which plant is NOT a poisonous landscape plant?
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| | A) | a. azalea
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| | B) | b. lily of the valley
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| | C) | c. daffodil
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| | D) | d. wood sorrel
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| | E) | e. none of the above
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5 | |
5. Tremetol, the toxin found in white snakeroot, attacks its victims by blocking the breakdown of lactic acid during the Krebs Cycle and causing acidosis.
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| | A) | True
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| | B) | False
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6 | |
6. Locoweed, milk vetch, and Indian hellebore are all examples of plants that cause mechanical injury.
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| | A) | True
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| | B) | False
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7 | |
7. Neem cake is a food additive derived from the neem tree and fed to cattle to ward off malaria-carrying flies.
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| | A) | True
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| | B) | False
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8 | |
8. The inhibition of plant growth surrounding sagebrush and artemesia plants is an example of _______.
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| | A) | a. allelopathy
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| | B) | b. an antigen
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| | C) | c. an alkaloid
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| | D) | d. an antihistamine
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9 | |
9. _______ are substances that trigger an immune response, and _______ are proteins that bind to foreign substances.
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| | A) | a. Lymphocytes, antibodies
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| | B) | b. Antigens, antibodies
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| | C) | c. Antibodies, antigens
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| | D) | d. Antihistamines, antigens
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10 | |
10. Allergic rhinitis is the term used by medical practitioners to describe hay fever.
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| | A) | True
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| | B) | False
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11 | |
11. Plants that cause hay fever have _______ on the walls of their pollen that enter the respiratory tract and cause an immune response.
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| | A) | a. monocrotaline
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| | B) | b. cardioactive glycosides
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| | C) | c. glycoproteins
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| | D) | d. alkaloids
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12 | |
12. The average ragweed plant may release as many as one billion pollen grains.
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| | A) | True
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| | B) | False
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13 | |
13. Which of the following allergy treatments uses extracts of the allergy-causing pollen?
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| | A) | a. antihistamine
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| | B) | b. corticosteroids
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| | C) | c. decongestants
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| | D) | d. immunotherapy
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14 | |
14. The toxic resin in poison ivy degrades quickly and is only present and toxic in young green plant tissue.
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| | A) | True
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| | B) | False
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15 | |
15. Anaphylaxis causes
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| | A) | a. cardiovascular collapse.
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| | B) | b. respiratory swelling.
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| | C) | c. a drop in blood pressure.
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| | D) | d. all of the above.
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| | E) | e. only b and c are correct.
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16 | |
16. The desert shrub guayule is currently being cultivated as a potential source of antihistamine.
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| | A) | True
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| | B) | False
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2003 McGraw-Hill Higher Education