Plant Physiology: Vascular Tissues Quiz
35 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is NOT an adaptive feature of roots for the absorption of water and minerals?

  • Many mitochondria in root hair cells
  • Highly branched and numerous root hairs
  • Long and fine root hairs
  • Epidermis covered by a thick cuticle (correct)
  • Phloem is responsible for the transport of water and minerals in plants.

    False

    What is the role of mitochondria in root hair cells?

    To supply energy for active transport of minerals from the soil.

    The _____ transports organic nutrients in plants.

    <p>phloem</p> Signup and view all the answers

    Match the following functions with the correct vascular tissue:

    <p>Transports water and minerals = Xylem Provides support for plants = Xylem Transports organic nutrients = Phloem</p> Signup and view all the answers

    Where are vascular bundles primarily located in the stems of flowering plants?

    <p>In a ring at the periphery</p> Signup and view all the answers

    In roots, vascular bundles are found at the outer region to provide better strength.

    <p>False</p> Signup and view all the answers

    What tissue lies at the top of phloem in the vascular bundles of leaves?

    <p>Xylem</p> Signup and view all the answers

    The arrangement of vascular bundles gives greater mechanical strength to the __________ of the stems.

    <p>periphery</p> Signup and view all the answers

    Match the parts of flowering plants with their vascular tissue locations:

    <p>Leaves = In the large central midrib and small veins Stems = In a ring at the periphery Roots = At the center Xylem = Lies at the top of phloem in leaves</p> Signup and view all the answers

    Which structure in a dicotyledonous root is responsible for water absorption?

    <p>Root hair</p> Signup and view all the answers

    Water absorption occurs solely through the xylem in plant roots.

    <p>False</p> Signup and view all the answers

    What are the three routes through which water travels in the cortex of plant roots?

    <p>Through cytoplasm by osmosis, through vacuoles by osmosis, and through cell walls.</p> Signup and view all the answers

    Water moves from cell to cell through the ________ of cells by osmosis in the cortex.

    <p>cytoplasm</p> Signup and view all the answers

    Match the structure of the root with its function:

    <p>Root hair = Absorbs water and minerals Cortex = Transports nutrients and water Xylem = Conducts water from roots to leaves Phloem = Transports sugars and other metabolic products</p> Signup and view all the answers

    Which of the following statements is true regarding the arrangement of vascular bundles in dicot stems?

    <p>Phloem is located in the outer ring of each vascular bundle, while xylem is in the inner region.</p> Signup and view all the answers

    Removing a ring of bark in a tree affects the transport of water but not organic food.

    <p>False</p> Signup and view all the answers

    Why does sugar accumulate in the tissue just above the ring after a few weeks?

    <p>Because the removal of phloem stops the downward transport of sugar, leading to its accumulation.</p> Signup and view all the answers

    The __________ factor contributes to reduced stem swelling during winter months due to a decrease in sugar production.

    <p>reduced rate of photosynthesis</p> Signup and view all the answers

    Match the following terms with their definitions:

    <p>Xylem = Transports water from roots to leaves Phloem = Transports organic food from leaves to other parts Photosynthesis = Process of converting light energy into chemical energy Vascular bundle = Structure that contains xylem and phloem</p> Signup and view all the answers

    What structural change allows xylem vessels to withstand the negative pressure of transpiration pull?

    <p>Lignified and thickened cell walls</p> Signup and view all the answers

    All xylem vessel cells contain a nucleus that supports metabolism.

    <p>False</p> Signup and view all the answers

    What relationship exists between the rate of transpiration and the diameter of the stem?

    <p>The diameter of the stem decreases as the rate of transpiration increases.</p> Signup and view all the answers

    Sieve tubes are formed from plant cells with modified end walls called __________.

    <p>sieve plates</p> Signup and view all the answers

    Match the following vascular tissues to their primary functions:

    <p>Xylem = Transports water and minerals from roots to leaves Phloem = Transports organic nutrients, especially sugars Sieve tubes = Facilitate transport of organic nutrients Xylem vessels = Support for water transport under tension</p> Signup and view all the answers

    Which route do most plants utilize for water movement due to the least resistance?

    <p>Route 4c</p> Signup and view all the answers

    Nitrate ions are absorbed into root hair cells by diffusion only.

    <p>False</p> Signup and view all the answers

    What happens to the water potential of root hair cells when water is drawn away to neighboring cortical cells?

    <p>It becomes lower.</p> Signup and view all the answers

    Applying too much fertilizer increases the mineral concentration in the soil, which lowers the _____ potential.

    <p>water</p> Signup and view all the answers

    Match the ions with their respective absorption processes:

    <p>Nitrate = Active transport Sulphate = Diffusion (and active transport)</p> Signup and view all the answers

    What process allows water to be absorbed into the roots of a plant from the soil?

    <p>Osmosis</p> Signup and view all the answers

    Translocation is a passive process that does not require energy from the plant.

    <p>False</p> Signup and view all the answers

    What substance accumulates in the tissue just above a ring cut into the bark of a tree?

    <p>sugar</p> Signup and view all the answers

    Xylem is responsible for the transport of ________ and minerals from the roots to other parts of the plant.

    <p>water</p> Signup and view all the answers

    Match the following processes with their corresponding descriptions:

    <p>Transpiration = Loss of water from leaves Osmosis = Movement of water into roots Translocation = Transport of organic nutrients Active Transport = Energy-requiring process for mineral absorption</p> Signup and view all the answers

    Study Notes

    The Ringing Experiment

    • Vascular bundles in dicot stems are arranged in a ring at the periphery.
    • Phloem is located in the outer ring, while xylem in the inner region.
    • Carbohydrates are continuously produced in the leaves of the tree by photosynthesis.
    • Carbohydrates are converted to sugar (sucrose), but the downward transport of the sugar was stopped by removing phloem.
    • Sugar accumulated in the tissue just above the ring.
    • Swelling of the stem was less prominent during winter due to fewer leaves and less sunlight, causing less sugar production.
    • Less sugar transported down the stem as a result.
    • The photo depicts a hollow tree in Hong Kong, where the tree trunk has rotted away.
    • Water and organic food are still transported between roots and leaves, as phloem remains unaffected.
    • The tree is still alive and growing.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge on the adaptive features of plant roots and the functions of vascular tissues. This quiz covers the role of mitochondria in root hair cells, the transport of nutrients, and the arrangement of vascular bundles. Challenge yourself with matching functions and locations within flowering plants.

    More Like This

    Plant Anatomy and Physiology Quiz
    11 questions

    Plant Anatomy and Physiology Quiz

    ProdigiousCombinatorics avatar
    ProdigiousCombinatorics
    Plant Physiology Chapter 9
    14 questions
    Xylem and Phloem in Plants
    32 questions

    Xylem and Phloem in Plants

    CommendableSard7063 avatar
    CommendableSard7063
    Use Quizgecko on...
    Browser
    Browser