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1 | |
1. Rhizomes, bulbs, and corms are all modified stems and may provide starchy staples. |
| | A) | True |
| | B) | False |
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2 | |
2. _______ are underground horizontal stems, whereas ________are aboveground horizontal stems. |
| | A) | a. Tubers, bulbs |
| | B) | b. Stolons, corms |
| | C) | c. Rhizomes, stolons |
| | D) | d. Rhizomes, tuberous roots |
| | E) | e. Runners, rhizomes |
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3 | |
3. Although associated with Ireland, the white potato actually originated in the Andes Mountains. |
| | A) | True |
| | B) | False |
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4 | |
4. Which factor(s) contributed to the Irish Potato Famine? |
| | A) | a. 1695 Penal Laws |
| | B) | b. Phytophthora infestans |
| | C) | c. reliance on a single crop |
| | D) | d. all of the above |
| | E) | e. only a and b are correct |
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5 | |
5. Solanum tuberosum was introduced to North America by migrating tribes of Inca Indians from what is now Bolivia. |
| | A) | True |
| | B) | False |
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6 | |
6. The dark ring apparent on some potato chips is actually the _______ of the potato tuber. |
| | A) | a. vascular tissue |
| | B) | b. cortex |
| | C) | c. pith |
| | D) | d. bud |
| | E) | e. starch grains |
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7 | |
7. Potatoes are a good source of carbohydrates because their pith parenchyma cells are filled with starch grains. |
| | A) | True |
| | B) | False |
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8 | |
8. Bacillus thuringiensis is a biological agent used to control _______. |
| | A) | a. Colorado Potato Beetle |
| | B) | b. potato blight |
| | C) | c. potato rust |
| | D) | d. all of the above |
| | E) | e. none of the above |
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9 | |
9. Thor Heyerdahl’s 1947 voyage from Peru to Polynesia supports the premise that the ________ was introduced to Polynesia from South America. |
| | A) | a. yam |
| | B) | b. white potato |
| | C) | c. cassava |
| | D) | d. sweet potato |
| | E) | e. none of the above |
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10 | |
10. Although most sweet potato varieties contain 50% more sugar than white potatoes, they are also an excellent source of vitamin A. |
| | A) | True |
| | B) | False |
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11 | |
11. Cassava propagation is distinctive from other starchy staples because _______. |
| | A) | a. starchy roots are used. |
| | B) | b. stem cuttings are used. |
| | C) | c. underground corm is used. |
| | D) | d. All of the above |
| | E) | e. None of the above |
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12 | |
12. Cassava plants must be processed by boiling or frying in order to neutralize the poisonous hydrocyanic acid. |
| | A) | True |
| | B) | False |
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13 | |
13. Although cultivation of the banana is greatest in Central America, it originated in |
| | A) | a. South America. |
| | B) | b. Southeast Asia. |
| | C) | c. Central America. |
| | D) | d. the Mediterranean. |
| | E) | e. North America |
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14 | |
14. The greatest threat to Panamanian banana plantations is Fusarium wilt that attacks the xylem cells in stem tissue. |
| | A) | True |
| | B) | False |
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15 | |
15. Saponins, which are used to produce human hormones, are derived from |
| | A) | a. cassava. |
| | B) | b. white potato. |
| | C) | c. sweet potato. |
| | D) | d. yams. |
| | E) | e. taro. |
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16 | |
16. The starchy corm of taro contains calcium oxalate crystals and is the main ingredient in the Hawaiian dish poi. |
| | A) | True |
| | B) | False |
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17 | |
17. The name “sunchoke” for Helianthus tuberosus refers to the plant’s arsenic compounds, which cause choking. |
| | A) | True |
| | B) | False |
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18 | |
18. Which of the following is NOT a current use of commercially processed starch? |
| | A) | a. glucose syrup |
| | B) | b. sizing |
| | C) | c. alcohol |
| | D) | d. plastics |
| | E) | e. coating agent for medicines |
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2006 McGraw-Hill Higher Education