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Types of Fruits and Fruit Structure
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Types of Fruits and Fruit Structure

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Questions and Answers

What is the function of the calyx in a flower?

  • Protects the bud (correct)
  • Helps to attract pollinators
  • Houses the female reproductive structures
  • Contains the male reproductive structures

    • In a complete flower, which of the following statements is true?

  • It only contains male parts
  • It has only female parts
  • All four whorls are present (correct)
  • It lacks both male and female reproductive structures

    • What is the main function of the stigma in a flower?

  • Becomes the fruit of the flower
  • Where pollen lands for pollination (correct)
  • Supports the anther
  • Contains pollen grains

    • How do imperfect flowers differ from perfect flowers?

    <p>Imperfect flowers may lack either male or female parts</p> Signup and view all the answers

    Which part of a flower becomes the seed?

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

    What is the main role of the androecium in a flower?

    <p>Produces pollen grains</p> Signup and view all the answers

    What is the role of the endosperm in seed development?

    <p>It serves as a food reserve for the embryo</p> Signup and view all the answers

    Which part of a seed includes the embryonic root?

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

    From which part of the flower do aggregate fruits form?

    <p>Ovaries of multiple flowers within a cluster</p> Signup and view all the answers

    Which type of reproduction results in genetically identical offspring?

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

    What defines an annual plant's life span?

    <p>Completing its life cycle in one year</p> Signup and view all the answers

    Which type of plant can flower and set seeds multiple times over its lifespan?

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

    Which type of fruit forms from a cluster of flowers called an inflorescence?

    <p>Multiple fruit</p> Signup and view all the answers

    What type of fruit like blueberries and cranberries have two innermost fleshy tissues and usually contain many seeds?

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

    Which type of fruit has a leathery rind and the interior of the fruit is divided into segments?

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

    From which part of the plant are accessory fruits formed?

    <p>Other than the ovary</p> Signup and view all the answers

    What type of dry fruit does not split open and is exemplified by strawberries?

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

    What is the main function of fruit according to the text?

    <p>Seed dispersal</p> Signup and view all the answers

    In which type of reproduction does fertilization not occur to produce seeds?

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

    32.24

    <p>Potato Stem Tubers</p> Signup and view all the answers

    What is the function of the calyx in a flower?

    <p>Protecting the bud</p> Signup and view all the answers

    In flowers, what does the corolla consist of?

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

    Which whorl in a flower contains male reproductive structures?

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

    What is the function of the style in a flower?

    <p>Leads to the ovary</p> Signup and view all the answers

    Which type of flowers have both male and female parts present?

    <p>Complete flowers</p> Signup and view all the answers

    Where are the female gametophytes enclosed in angiosperms?

    <p>Inside ovules</p> Signup and view all the answers

    What is the primary mode of pollination in gymnosperms?

    <p>Wind pollination</p> Signup and view all the answers

    How are the sperm cells transferred in plant fertilization?

    <p>'One lags' - One lags behind while the other enters the embryo sac</p> Signup and view all the answers

    'Insects' serve as pollinators to plants with which type of flowers?

    <p>'Flat' - Flowers with suitable shapes</p> Signup and view all the answers

    What is the final product of microgametogenesis in angiosperms?

    <p>Sperm cells</p> Signup and view all the answers

    What is the function of the tube cell in angiosperms during male gamete production?

    <p>Develops into the pollen grain</p> Signup and view all the answers

    What is the significance of the large megaspore in female gamete production of angiosperms?

    <p>Survives and divides to form the embryo sac</p> Signup and view all the answers

    In plant fertilization, what is the role of pheromones in the process?

    <p>Guide the pollen tube to the embryo sac</p> Signup and view all the answers

    Which part of a seed in angiosperms typically serves as a food reserve for the developing embryo?

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

    What is the primary purpose of the hypocotyl in an angiosperm seed?

    <p>Becomes the stem below cotyledons</p> Signup and view all the answers

    Which cells are found at each end of an angiosperm embryo sac?

    <p><em>Antipodal cells</em></p> Signup and view all the answers

    'Monocots have one cotyledon.' - This statement is:

    <p><em>True</em></p> Signup and view all the answers

    'Pollen grain grows a pollen tube guided by pheromones.' - The primary purpose of this process is:

    <p><em>Fertilization</em></p> Signup and view all the answers

    'Seed coat protects the embryo.' - What is the main function of this protection?

    <p><em>Prevents premature germination</em></p> Signup and view all the answers

    Study Notes

    • Flowers in angiosperms house the gametophyte generation in modified stems with modified leaves.
    • The four whorls of a flower are Calyx (outermost with sepals), Corolla (second with petals), Androecium (third with male reproductive structures), and Gynoecium (innermost with female reproductive structures).
    • The female part of a flower includes the Carpel, with the ovary containing the ovule, which becomes the fruit and seed. It also includes the Stigma where pollen lands and the Style leading to the ovary.
    • The male part of a flower is the Stamen, with the Anther containing pollen grains and the Filament supporting it.
    • Perfect flowers have both male and female parts, while imperfect flowers can be Staminate (only male) or Carpellate (only female).
    • Male gametes in angiosperms are produced through Microsporogenesis and Microgametogenesis in the anther, leading to the development of sperm cells and pollen tubes.
    • Female gametes in angiosperms are produced through Megasporogenesis and Megagametogenesis in the ovule, resulting in the formation of the embryo sac containing egg cells, synergids, and polar nuclei.
    • Plant fertilization involves the mechanical transfer of pollen from anther to stigma, followed by pollen tube growth, sperm cell division, and eventual pollination leading to seed development.

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    Description

    Learn about the different types of fruits and their formation, including simple fruits, aggregate fruits, and multiple fruits. Explore the structure of fruits, including the pericarp composed of exocarp, mesocarp, and endocarp.

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