Plant Biology Quiz: Monocots vs. Dicots
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Questions and Answers

What is a characteristic feature of monocot roots?

  • Presence of a pith in the center (correct)
  • Presence of a vascular cambium
  • Undergoing secondary growth
  • Absence of a pith in the center

    • What is true about herbaceous eudicot roots compared to monocot roots?

  • Their xylem and phloem form a solid mass. (correct)
  • They undergo secondary growth.
  • They lack a pith.
  • They have more cambium than monocots.

    • Which statement accurately describes the vascular cambium in monocots?

  • Monocots contain multiple cambium layers.
  • Monocots always undergo secondary growth.
  • Monocots lack a vascular cambium. (correct)
  • Monocots have a vascular cambium that enables secondary growth.

    • Which of the following is NOT a characteristic of dicots?

    <p>They have an unlimited number of xylem and phloem.</p> Signup and view all the answers

    What do dicots give rise to that monocots do not?

    <p>Corks and cambium</p> Signup and view all the answers

    What is the role of hairs on leaves in relation to air currents?

    <p>They create local humidity and reduce air current exposure.</p> Signup and view all the answers

    What is one physiological change involved in leaf abscission?

    <p>Formation of a protective layer at the stem.</p> Signup and view all the answers

    Which of the following leaves is primarily used to produce the dye henna?

    <p>Leaves of Lawsonia inermis</p> Signup and view all the answers

    Which economic importance of leaves is related to beverages?

    <p>Food items like spinach and lettuce.</p> Signup and view all the answers

    Which plant is known for its flammable resin that can be used as fuel?

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

    What percentage of the earth is covered by saline water?

    <p>80%</p> Signup and view all the answers

    What term describes plants that are adapted to salty habitats?

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

    Which of the following statements about halophytes is true?

    <p>Most halophytes can survive in both saline and freshwater environments.</p> Signup and view all the answers

    How do plants typically respond to increased salts in their environment?

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

    What distinguishes halophytes from glycophytes?

    <p>Halophytes adapt specifically to saline environments.</p> Signup and view all the answers

    What is the primary function of the root cap?

    <p>To protect the delicate root apical meristem</p> Signup and view all the answers

    How do root caps respond to gravitational forces?

    <p>They exhibit positively geotropic behavior</p> Signup and view all the answers

    What characteristic of root hairs enhances the absorptive capacity of roots?

    <p>They are short-lived and increase surface area</p> Signup and view all the answers

    What substance do root caps secrete to assist in moisture retention?

    <p>A mucilaginous substance</p> Signup and view all the answers

    Which of the following statements about root hairs is true?

    <p>They increase the area for moisture absorption</p> Signup and view all the answers

    Which of the following correctly describes the phototropic behavior of root caps?

    <p>They grow away from light</p> Signup and view all the answers

    What is the lifespan of root hairs?

    <p>They are short-lived, lasting a few days to weeks</p> Signup and view all the answers

    In what way do root caps assist a plant's growth towards moisture?

    <p>By detecting moisture and guiding root direction</p> Signup and view all the answers

    What is the primary function of tendrils in plants?

    <p>To aid in structural support</p> Signup and view all the answers

    Where are lenticels typically found?

    <p>On the surfaces of leaves and certain fruits</p> Signup and view all the answers

    What is the characteristic of a tuber?

    <p>A thickened end of a rhizome specialized for food storage</p> Signup and view all the answers

    Which of the following is NOT an economic importance of stems?

    <p>Fuel source</p> Signup and view all the answers

    What are suckers in relation to plant structures?

    <p>Vertical shoots that arise from underground stems</p> Signup and view all the answers

    What role do potatoes and sweet potatoes serve in a plant's structure?

    <p>They store energy as tubers.</p> Signup and view all the answers

    Which of the following best describes a cladophyll?

    <p>A stem which is flattened and acts like a leaf</p> Signup and view all the answers

    What is the primary function of periderm associated with lenticels?

    <p>To allow gas exchange</p> Signup and view all the answers

    What does the protoderm develop into in plants?

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

    Which type of meristem is primarily responsible for the increase in plant length?

    <p>Primary/apical meristem</p> Signup and view all the answers

    Where is parenchyma tissue typically found in plants?

    <p>In the ground meristem</p> Signup and view all the answers

    What is one of the primary functions of the root system in plants?

    <p>Nutrient absorption</p> Signup and view all the answers

    Which of the following is not a type of plant organ listed?

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

    Which nutrient is essential for plant growth and is commonly required in the highest quantity?

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

    Which system consists of the stem, leaf, flower, fruit, and buds?

    <p>Shoot System</p> Signup and view all the answers

    How many types of plant meristems are specifically mentioned?

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

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