Louisiana Horticulture Test Exam ACTUAL QUESTIONS AND CORRECT ANSWERS

Louisiana Horticulture Test Exam ACTUAL
QUESTIONS AND CORRECT ANSWERS
What is the difference between a cultivar and variety? - CORRECT
ANSWER Cultivar- A plant or grouping of plants selected for desirable characteristics
that can be maintained by propagation



Variety- A naturally occurring subgroup of a species which has some distinguishing
characters



Who is Linnaeus? What system of naming plants did he create? - CORRECT
ANSWER Linnaeus is a Swedish Botanist who developed the Binomial System of
Nomenclature(Genus + Species)


Why is it important to know common and scientific names of plants? - CORRECT
ANSWER So that you can communicate with others without confusion about the
identity of a plant



What are some origins of botanical names? - CORRECT ANSWER Country of origin,
Names of Explorers, and Descriptive Latin Terms


What are some typical groupings for plants when they are classified by growth
characteristics? - CORRECT ANSWER Life Span, Leaf Retention, Growth Habits,
Light, Size



List the functions of a root system. - CORRECT ANSWER Absorption, Anchorage,
Conduction, Storage



What are two kinds of root systems? - CORRECT ANSWER Fibrous and Taproot



List the functions of the stem of a plant. - CORRECT ANSWER Support; Conduction;
Storage

,Define xylem and phloem. - CORRECT ANSWER xylem- the transport vessel for
water and minerals from root to leaf



phloem- the transport vessel for manufactured food from leaf to stem



What is the difference between monocots and dicots? - CORRECT
ANSWER monocots- plants that have a single seed leaf(corn; grass; lilly)



dicots- plants that have two seed leaves(trees; shrubs; annuals)



What are nodes and internodes? - CORRECT ANSWER nodes- the area on stems
where leaves emerge



internodes- the area on stems in between where leaves emerge



List the types of specialized stems and roots commonly found in plants. - CORRECT
ANSWER Bulbs; Corms; Rhizomes; Tubers; Tuberous Roots



What are the two main functions of leaves? - CORRECT ANSWER Photosynthesis
and Transpiration



Define angiosperms and gymnosperms. - CORRECT ANSWER Angiosperms- plants
that bloom and develop fruit which encloses the seed



Gymnosperms- plants that have no true flowers or fruit, but make seeds in cones



List the parts of a complete flower. - CORRECT ANSWER Stamen(Anther &
Filament)

Pistil(Stilma; Style; Ovary)
Petal
Sepal

, Locule

Ovule

Placenta

Receptacle
Peduncle



List the priority in which plant parts receive food manufactured by the leaves. - CORRECT
ANSWER 1)Flower

2)Seed

3)Leaves

4)Stems
5)Roots



List three primary elements for essential plant growth. - CORRECT ANSWER Carbon;
Hydrogen; Oxygen



List the three macronutrients essential for plant growth. - CORRECT
ANSWER Nitrogen; Phosphorus; Potassium



List the seven Micronutrients needed for optimum plant growth. - CORRECT
ANSWER Boron; Copper; Chlorine; Iron; Manganese; Molybdenum; Zinc



How is light intensity commonly measured? - CORRECT ANSWER Foot Candles:
The amount of light falling on one square foot one foot away from a standard candle



List three functions of water in a plant. - CORRECT ANSWER 1)Ingredient of
Photosynthesis

2)Solvent for nutrients
3)Gives the plant tissue rigidity