Plant Form And Function Quiz

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Plant Form And Function Quiz - Quiz

Using your readings from Ch. 35 and our discussions in class, answer the following multiple choice questions. You will have 10 minutes to complete the quiz.


Questions and Answers
  • 1. 

    Which of the following is incorrect?  Monocots typically have

    • A.

      A taproot rather than a fibrous root

    • B.

      Leaves with parallel veins rather than branching venation

    • C.

      No secondary growth

    • D.

      Scattered vascular bundles in the stem rather than bundles in a ring

    • E.

      Pith in the center of the vascular stele in the root

    Correct Answer
    A. A taproot rather than a fibrous root
    Explanation
    Monocots typically have fibrous roots rather than a taproot. The fibrous root system consists of multiple thin roots that spread out in all directions, while a taproot system consists of a single, thick main root with smaller lateral roots branching off.

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  • 2. 

    Ground meristem

    • A.

      Produces the root system

    • B.

      Produces the ground tissue system

    • C.

      Produces secondary growth

    • D.

      Is meristematic tissue found at the nodes in monocots

    • E.

      Develops from protoderm

    Correct Answer
    B. Produces the ground tissue system
    Explanation
    The ground meristem is responsible for producing the ground tissue system. Ground tissue is a type of plant tissue that makes up the majority of the plant body and performs various functions such as photosynthesis, storage, and support. The ground meristem gives rise to the ground tissue system, which includes tissues like parenchyma, collenchyma, and sclerenchyma. These tissues are found in the stems, leaves, and roots of plants and play a crucial role in their overall structure and function.

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  • 3. 

    The zone of elongation

    • A.

      Is responsible for pushing a root through the soil

    • B.

      Has a quiescent center that can undergo mitosis should the apical meristem be destroyed

    • C.

      Produces protoderm, procambium, and ground meristem tissues

    • D.

      Is further rom the root tip than the zone of maturation

    • E.

      Is or does all of the above

    Correct Answer
    A. Is responsible for pushing a root through the soil
    Explanation
    The zone of elongation is responsible for pushing a root through the soil by actively elongating the cells in the root. This zone is located just behind the apical meristem, where cell division occurs. As the cells in the zone of elongation elongate, they push the root tip forward, allowing the root to penetrate the soil. Therefore, the statement "is responsible for pushing a root through the soil" accurately describes the role of the zone of elongation in root growth.

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  • 4. 

    Which of the following is incorrectly paire with its type of life cycle?

    • A.

      Pine tree - perennial

    • B.

      Rose bush - perennial

    • C.

      Carrot - biennial

    • D.

      Marigold - annual

    • E.

      Wheat - biennial

    Correct Answer
    E. Wheat - biennial
    Explanation
    The given answer is correct because wheat is actually an annual plant, not a biennial. Annual plants complete their life cycle within one year, while biennial plants take two years to complete their life cycle. Wheat is typically sown in the fall and harvested the following summer, completing its life cycle within a year. Therefore, it is incorrectly paired with the term "biennial".

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  • 5. 

    Secondary xylem and phloem is produced in the root by the

    • A.

      Pericycle

    • B.

      Endodermis

    • C.

      Vascular cambium

    • D.

      Apical meristem

    • E.

      Ray initial

    Correct Answer
    C. Vascular cambium
    Explanation
    The vascular cambium is responsible for producing secondary xylem and phloem in the root. The vascular cambium is a lateral meristem that is located between the primary xylem and phloem. It actively divides and produces new cells, which differentiate into secondary xylem towards the center and secondary phloem towards the outside. This process results in the growth of the root in thickness. The pericycle, endodermis, apical meristem, and ray initial are not directly involved in the production of secondary xylem and phloem in the root.

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  • 6. 

    Bark consists of

    • A.

      Secondary phloem

    • B.

      Periderm

    • C.

      Cork cells

    • D.

      Cork cambium

    • E.

      All of the above

    Correct Answer
    E. All of the above
    Explanation
    The bark of a tree is composed of several layers, including secondary phloem, periderm, cork cells, and cork cambium. The secondary phloem is responsible for transporting nutrients and sugars throughout the tree. The periderm is the outer protective layer of the bark, consisting of cork cells that provide insulation and protection against external factors. The cork cambium is a layer of cells that produces new cork cells, allowing the bark to grow and renew itself. Therefore, all of the mentioned options are correct, as they are all components of the bark.

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  • 7. 

    Sieve-tube members

    • A.

      Are responsible for lateral transport through a woody stem

    • B.

      Control the activities of phloem cells that have no nuclei or ribosomes

    • C.

      Have sprial thickenings that allow the cell to grow along with a young shoot

    • D.

      Are vascular cells with sieve plates in the end walls between cells

    • E.

      Are tapered water transport cells with pits

    Correct Answer
    D. Are vascular cells with sieve plates in the end walls between cells
    Explanation
    Sieve-tube members are vascular cells with sieve plates in the end walls between cells. Sieve plates are specialized structures that allow for the movement of materials, such as sugars, through the phloem. These cells are responsible for the long-distance transport of organic compounds in plants. The presence of sieve plates in the end walls of these cells enables the efficient flow of nutrients and other substances throughout the plant.

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  • 8. 

    Which of the following cells are dead at functional maturity?

    • A.

      Tracheids

    • B.

      Cork cells

    • C.

      Vessel elements

    • D.

      Sclerenchyma cells

    • E.

      All of the above

    Correct Answer
    E. All of the above
    Explanation
    All of the cells mentioned in the options (tracheids, cork cells, vessel elements, and sclerenchyma cells) are dead at functional maturity. Tracheids, vessel elements, and sclerenchyma cells are part of the plant's supporting tissues and provide structural support even after they have died. Cork cells are dead at maturity and form the outer protective layer of the plant. Therefore, all of these cells are dead at functional maturity.

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  • 9. 

    Axillary buds

    • A.

      May exhibit apical dominance over teh terminal bud

    • B.

      Form at nodes in the angle where leaves join the stem

    • C.

      Grow out from the pericycle layer

    • D.

      Are formed from intercalary meristems

    • E.

      Only develop into vegetative shoots

    Correct Answer
    B. Form at nodes in the angle where leaves join the stem
  • 10. 

    Which of the following is incorrectly paired with its function?

    • A.

      Ray initials - form radial xylem and phloem rays

    • B.

      Lenticel - spongy area for gas exchange in woody stems

    • C.

      Root hairs - absorption of water and dissolved minerals

    • D.

      Root cap - protects root as it pushes through soil

    • E.

      Procambium - meristematic tissue that forms protective layer of cork

    Correct Answer
    E. Procambium - meristematic tissue that forms protective layer of cork
    Explanation
    The given answer is correct. Procambium is a meristematic tissue that forms the primary vascular tissues, such as xylem and phloem, in plants. It does not form the protective layer of cork, which is formed by the cork cambium.

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  • Current Version
  • Apr 25, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 05, 2009
    Quiz Created by
    Sparksk.rrhs

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