Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 1. | Plants are used in the
interior of a home decorated in primary colors and hard-edged furniture to: a. | Add balance to the room. | c. | Add softness and detail. | b. | Bring the outside into the home. | d. | Add contrast in color of the home. | | | | |
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| 2. | A plant maintains a healthy
heat and moisture balance through a process called: a. | Photosynthesis | c. | Hybridization | b. | Respiration | d. | Transpiration | | | | |
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| 3. | A flower bed that includes
maroon snapdragons, rose-colored nicotiana and pale pink a. | Complimentary | c. | Monochromatic | b. | Analogous | d. | Polychromatic | | | | |
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| 4. | Hook wiring is the most
appropriate technique for use with: a. | Roses | c. | Chrysanthemums | b. | Snapdragons | d. | Carnations | | | | |
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| 5. | Which of the following are
hermaphroditic? a. | Sawflies | c. | Slugs | b. | Beetles | d. | Mealy bugs | | | | |
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| 6. | A temperature of 16 degrees
centigrade is equal to _ degrees fahrenheit.
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| 7. | When a crop is grown at a
night temperature of 50 degrees F, it is referred to as: a. | A cool season crop | c. | A 50 day greenhouse crop | b. | A 59 degree greenhouse crop | d. | A 50 day bloomer | | | | |
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| 8. | Oedema in plants is usually
caused by: a. | Too much heat around the
plant | c. | Overwatering | b. | An insect called Oedem | d. | To short a growing season | | | | |
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| 9. | Which flower blooms
naturally throughout the summer? a. | Mums | c. | Pansies | b. | Marigolds | d. | All of the above | | | | |
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| 10. | Sugars and oxygen are
produced in plants by the: a. | Interaction of light energy, carbon dioxide, and water with
chlorophyll | c. | Interaction of light energy, CO and soil
nutrients | b. | Light intensity and rising temperatures | d. | Interaction of Chlorophy with soil nutrients and water | | | | |
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| 11. | When new growth on a plant
is weak and spindly with large gaps between the leaves, the plant is most likely suffering from a
lack of: a. | Nitrogen | c. | Light | b. | Water | d. | Phosphorus | | | | |
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| 12. | Which of the following
insecticides can be used to control tiny, brownish-yellow, winged insects that cause flecked or
silver-white streaking and stippling on foliage and flowers? a. | Malathion | c. | Phygon | b. | Captan | d. | Kalthene | | | | |
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| 13. | Florist azaleas
are a. | bulbs | c. | small evergeen
shrubs | b. | annuals | d. | herbaceous perennials | | | | |
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| 14. | If a customer selects an
item marked $28.50 which is a "Special" marked 10 percent off, and there is a 5 percent
sales tax, the customer should be charged: a. | $29.93 | c. | $25.65 | b. | $24.50 | d. | $26.93 | | | | |
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| 15. | Which of the following is a
sun loving flower? a. | Begonia | c. | Marigold | b. | Impatiens | d. | All of the above | | | | |
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| 16. | Increasing and maintaining
the C02 level to 1200 ppm around a chrysanthemum plant will: a. | Decrease foliage development | c. | Stimulate root growth | b. | Increase flower size and quality | d. | Cause the flower color to change | | | | |
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| 17. | Which of the following
insects feeds by piercing and sucking? a. | Praying Mantids | c. | Grasshoppers | b. | Aphids | d. | Lady Bug | | | | |
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| 18. | Air layered plants are
removed from the parent plant: a. | When the roots are four to six inches long | c. | Immediately after layering | b. | When the plants are sold | d. | As soon as the roots are visible | | | | |
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| 19. | Which of the following
plants is sometimes used as a cut stem? a. | Ageratum | c. | Zinnia | b. | Cloven | d. | Henbit | | | | |
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| 20. | Petunias belong to which
family? a. | Magnoliaceae | c. | Solanaceae | b. | Liliaceae | d. | Compositae | | | | |
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| 21. | Jointed stems of leafless
plants are called: a. | Phyllocades | c. | Gymnosperms | b. | Pathogens | d. | Collars | | | | |
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| 22. | Young Seedlings that rot at
ground level and fall over are affected by: a. | Mosaic | c. | Damping off | b. | Aster Yellows | d. | Botrytis blight | | | | |
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| 23. | Transpiration is important
to the plant because it: a. | Provides turgidity for the plant | c. | Feeds the leaf and stimulates growth | b. | Stabilizes leaf temperatures | d. | Carries water to the plant through the phloem cells of the
plant | | | | |
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| 24. | It is best to divide late
summer or fall blooming perennials in the: a. | Fall | c. | Early Spring | b. | Late Summer | d. | Summer | | | | |
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| 25. | Potassium contributes to
which of the following plant growth habits? a. | Stem strength and disease resistance | c. | Green color development of the plant | b. | Bloom and root growth | d. | None of the above | | | | |
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| 26. | Which of the following is
not a perennial? a. | Sneezeweed | c. | Gas plant | b. | Gypsophila | d. | Salvia | | | | |
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| 27. | Which of the following is
not a member of the Dianthus family? a. | Sweet Williams | c. | Sweet Alyssum | b. | Carnation | d. | China Pink | | | | |
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| 28. | Propagation schedules for
bedding plants (anywhere is the U.S.) are based on: a. | Sales period just after the last spring
frost | c. | The variety and specie of bedding plant to be
grown | b. | The length of growing period of the bedding plant | d. | Both A and B | | | | |
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| 29. | Insects can be lured into
traps through the use of: a. | Synthetic pheromonesPathogens | c. | Sticky tapes | b. | Pathogens | d. | Insecticides | | | | |
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| 30. | The genus of Rubber Plant
is: a. | Rubiaceae | c. | Sandersii | b. | Peperomia | d. | Ficus | | | | |
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| 31. | Aluminum sulfate, when
applied to hydrangeas will cause the: a. | Plant to increase its foliar growth | c. | Plant to double the number of blooming stalks | b. | Blooms to turn pink | d. | Blooms to turn blue | | | | |
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| 32. | In order to force properly,
azaleas must be precooled for ________ weeks.
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| 33. | The appearance of frothy
foam on a flower stem indicates the presence of a. | Spittlebugs | c. | Stink Bugs | b. | Sowbugs | d. | Aphids | | | | |
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| 34. | Which of the following
plants requires four or more hours of direct sunlight daily? a. | Chinese evergreen | c. | Dieffenbachia | b. | Bird's nest fern | d. | Poinsettia | | | | |
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| 35. | Commercially important
spring flowering bulb crops are a. | gladiolus, dahlia, potato | c. | daffodils, tulip, hyacinth | b. | achimenes,
tuberous begonia, gloxinea | d. | petunia, salvia,
impatiens | | | | |
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| 36. | During plant
respiration: a. | Sugars are combined with oxygen and
stored in the plant leaves. | c. | Sugars are combined with oxygen to
release energy | b. | Oxygen is combined with carbon dioxide to create gases that are expelled through the
stomata. | d. | Oxygen is consumed by the plant to add turgidity to the plant
stems. | | | | |
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| 37. | A pathogen
is: a. | The specie for Hedra | c. | A compound applied to stimulate plant growth. | b. | An organism capable of causing a
disease. | d. | An insecticide used to control thrips. | | | | |
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| 38. | Which of the following would
best establish lines in an arrangement of flowers? a. | Babys Breath | c. | Rose | b. | Leatherleaf | d. | Gladiola | | | | |
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| 39. | Oozing of sap from a plant
is a sign of: a. | Photosynthesis | c. | Chlorosis | b. | Scarification | d. | Gummosis | | | | |
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| 40. | Which of the following is
not a beneficial insect? a. | Cinch Bug | c. | Assasin bug | b. | Lacewing | d. | Tachinid Fly | | | | |
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| 41. | To cause plants in the
greenhouse to develop and grow more slowly, one should: a. | Decrease the greenhouse temperature | c. | Decrease the intensity of light around the crops. | b. | Increase the amount of peat in the soil in which the crops
grow. | d. | Fumigate the greenhouse once a week. | | | | |
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| 42. | When planning a perennial
flower garden, a consideration that is often overlooked by those planning the garden
is: a. | Spread of mature plants | c. | Temperature requirement of perennials | b. | Color combination | d. | Texture of plant foliage | | | | |
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| 43. | Which of the following
flowers is the most heat-tolerant? a. | Dahlia | c. | Nasturtium | b. | Sweat Pea | d. | Stock | | | | |
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| 44. | Which of the following is
not an insect? a. | Cinchbug | c. | Silverfish | b. | Mite | d. | Termite | | | | |
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| 45. | The recommended optimum pH
for annual flowers is between: a. | 7.0 to 7.5 | c. | 6.0 to 7.0 | b. | 6.5 to 7.5 | d. | 6.5 to 7.5 | | | | |
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| 46. | The common name for
Syngonium podophyllum is: a. | African Evergreen | c. | Devil's Ivy | b. | Wandering Jew | d. | English Ivy | | | | |
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| 47. | The leaves of plants
manufacture: a. | Starch | c. | Sugars | b. | Protein | d. | Potassium | | | | |
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| 48. | Which of the following
indoor plants should be used to add a bold pattern or form in a room with a solid wall of color and
serve as a focal point? a. | Snapdragon | c. | Azalea | b. | Caladium | d. | Weeping fig | | | | |
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| 49. | A symptom that a plant is
experiencing phototropism is that the plant a. | leaves are turning yellow | c. | is developing arieal roots | b. | is reaching for light | d. | appears to be wilting | | | | |
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| 50. | One of the drawbacks to
using incandescent light for house plants is that it: a. | Produces less heat | c. | Produces too much blue light waves | b. | Produces too much heat | d. | Produces too much light at a given time | | | | |
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