Louisiana Horticulture Exam study guide 2024 questions and verified correct answers 2024
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Course
Louisiana Horticulture
Institution
Louisiana Horticulture
4 major plant parts include - correct answer roots
stems
leaves
reproductive parts
4 functions of the root system include - correct answer absorption
anchorage
conduction
storage
2 kind of root systems found in plants are - correct answer fibrous root systems
and
taproot systems
Fi...
Louisiana Horticulture Exam study guide
2024
4 major plant parts include - correct answer roots
stems
leaves
reproductive parts
4 functions of the root system include - correct answer absorption
anchorage
conduction
storage
2 kind of root systems found in plants are - correct answer fibrous root systems
and
taproot systems
Fibrous root system - correct answer root system that consists of numerous multi-branched roots that are slender; no one root is more prominent than the other.
Tap root system (more difficult to transplant) - correct answer root system that consists of one main root that grows directly downward from which branch roots arise;
carrot or a woody root (oak,maple)
What should you do if a plant becomes root bound within their containers? - correct answer Spread the roots out or prune them to encourage the root system to grow outward 3 primary functions of the stems are - correct answer Support
conduction
storage
Conduction - correct answer the movement of water, mineral solutions, and substances manufactured in
the plant.
xylem - correct answer water and mineral solution move upward from the roots to the leaves through inner tissues called
phloem - correct answer manufactured food from the leaves move out of the leaves through outer stem tissues called
What 2 tissues form the vascular system of the plant? - correct answer xylem and phloem
Cambium layer - correct answer The tissue between the xylem and phloem is called the ____________. Plant function growth depends on uninterrupted conduction.
Monocotyledonous Plants (single leaf monocots) - correct answer The xylem and phloem tissues are formed in bundles scattered in a discontinuous vascular system through the stem.
Corn, grass, lilies, orchids
Dicotyledonous Plants (two seed leaves dicots)
Gymnosperms Plants (many seed leaves) - correct answer the xylem is formed on the inside next to the heartwood surrounded by a continuous layer of cambium with the phloem on the outside.
Tree, shrubs, annuals, and perrennials
Girdle - correct answer is a complete circle of dead tissue around the stem which interrupts the food supply pipeline.
Nodes and internodes - correct answer Areas of the stems where leaves emerge are called ____________ and the space between are called __________. axillary bud and axil - correct answer in the angle where each leaf joins the stem, there is an _________________ which is compressed, dormant stem. The angle is called the ______ of the leaf.
Asexual reproductive structures - correct answer Some plants have modified stem and roots structures that store exceptionally large amounts of food and function as
Corms, such as gladiolus - correct answer solid stem structures with remains of dried scale leaves surrounding and protecting them. Cycle of changes are controlled by temperature.
Rhizome, such as Louisiana - correct answer the main axis or stem of the plant is in a horizontal position underground
Stolons - correct answer Cylindrical horizontal stems found above ground similar to a rhizome
Tuberous roots (sweet potato) - correct answer roots that do not have nodes and buds
crown - correct answer the area where the stem and root tissue meets
Biennial Root - correct answer Roots that are living through two growing seasons
Annual Top Root - correct answer Root living through one growing season
October until December - correct answer Outdoor planting of spring bulbs can be done from
Dicot Leaf - correct answer Leaf that generally has netted venation, one or more prominent veins with branches forming a conspicuous net
Mono Leaf - correct answer Leaf that generally has parallel veins with inconspicuous branching between the veins as in corn Photosynthesis and transpiration - correct answer Leaves have two main functions to carry out: ______________ and _______________.
Photosynthesis - correct answer the process whereby carbon dioxide and water are eventually transformed into sugars (glucose) by the living cell using energy from visible light absorbed by chlorophyll (green pigments)
Transpiration - correct answer the process whereby the leaf gives off water into the atmosphere and temperature of the leaf is regulated to reduce injury from excessive heat build up
water deficit making the plant wilt - correct answer What occurs when transpiration is more rapid than absorption?
Lower water pressure at the TOP of the plant - correct answer Water movement from the roots through the stems to the leaves depends on
Angiosperms - correct answer Plants that bloom and develop fruit which encloses the seed
gymnosperms - correct answer plants that have no true flowers or fruit, but bear their seeds uncovered in cones or similar structures such as conifers
receptacle - correct answer flowers are borne on an enlarged portion of the stem called the
sepals - correct answer outer set of green floral leaves called __________ enclose the other parts of the flower until these are nearly mature.
Calyx - correct answer collectively , the sepals comprise the ______.
Corolla - correct answer An entire set of petals is called the ________.
Stamens - correct answer are the male parts of the flower and are composed of pollen-bearing anthers supported by filaments.
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