Plant Structure and Function
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Questions and Answers

What distinguishes gymnosperms from angiosperms?

  • Gymnosperms produce seeds inside a fruit.
  • Gymnosperms have seeds naked and not protected by fruit. (correct)
  • Gymnosperms are always small plants.
  • Gymnosperms have flowers.
  • Which of the following plant types reproduce using pollen grains that are dispersed by the wind?

  • Non-vascular plants
  • Bryophytes
  • Angiosperms
  • Gymnosperms (correct)
  • What is a defining feature of angiosperms?

  • They have no seeds.
  • They have needle-like leaves.
  • They produce flowers. (correct)
  • They reproduce using spores.
  • Which statement about vascular plants is accurate?

    <p>Vascular plants can conduct water and nutrients. (C)</p> Signup and view all the answers

    Which of the following is true regarding non-vascular plants?

    <p>They require water for sperm to swim to the egg. (A)</p> Signup and view all the answers

    What type of leaves are typically found on gymnosperms?

    <p>Needle-like or scale-like leaves (D)</p> Signup and view all the answers

    Which group of plants is categorized into monocots and dicots?

    <p>Angiosperms (B)</p> Signup and view all the answers

    What does the term 'tracheophytes' refer to?

    <p>Vascular plants (D)</p> Signup and view all the answers

    What is the role of the stigma in a flower?

    <p>To capture pollen grains (D)</p> Signup and view all the answers

    What happens to the ovules after fertilization?

    <p>They become the seeds (A)</p> Signup and view all the answers

    What do sepals collectively form in a flower?

    <p>Calyx (A)</p> Signup and view all the answers

    Which part of the flower is responsible for attracting pollinators?

    <p>Petals (A)</p> Signup and view all the answers

    What is the primary difference between self-pollination and cross-pollination?

    <p>Self-pollination occurs within the same plant, while cross-pollination involves different plants. (B)</p> Signup and view all the answers

    What structure connects the stigma to the ovary in a flower?

    <p>Style (B)</p> Signup and view all the answers

    What is the first step in the process of fertilization following pollination?

    <p>The egg is fertilized by the sperm cell (C)</p> Signup and view all the answers

    What is the collective term for the flower's petals?

    <p>Corolla (D)</p> Signup and view all the answers

    What characteristic differentiates monocots from dicots in terms of their vascular bundles?

    <p>Vascular bundles are scattered in monocots. (A)</p> Signup and view all the answers

    Which of the following plant structures is primarily involved in asexual reproduction?

    <p>Rhizomes (B)</p> Signup and view all the answers

    What is a defining feature of flowers found in dicots?

    <p>Flower parts typically in fours or fives. (C)</p> Signup and view all the answers

    Which type of modified stem is primarily utilized for food storage underground?

    <p>Corms (A)</p> Signup and view all the answers

    In terms of seed structure, how do monocots differ from dicots?

    <p>Monocots have one cotyledon. (D)</p> Signup and view all the answers

    Which part of the flower produces pollen grains?

    <p>Anther (D)</p> Signup and view all the answers

    What type of modified stem is characterized by having a horizontal above-ground structure?

    <p>Stolons/Runners (D)</p> Signup and view all the answers

    Which of the following modified stems is known for its water storage capacity?

    <p>Succulent stems (B)</p> Signup and view all the answers

    Flashcards

    Gymnosperms

    Plants that produce seeds without an outer covering or fruit.

    Angiosperms

    Plants that produce seeds enclosed within a fruit.

    Sexual Reproduction in Plants

    A type of plant reproduction that involves the union of male and female gametes, resulting in offspring with genetic diversity.

    Asexual Reproduction in Plants

    A type of plant reproduction where new plants arise from a single parent without the involvement of gametes, resulting in offspring genetically identical to the parent.

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    Monocots

    A type of angiosperm where the seeds are enclosed within a single cotyledon (seed leaf). Examples include grasses, lilies, and orchids.

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    Dicots

    A type of angiosperm where the seeds are enclosed within two cotyledons (seed leaves). Examples include beans, roses, and trees.

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    Pollination

    The process by which a sperm cell from a pollen grain reaches and fertilizes an egg cell within an ovule, leading to the formation of a seed.

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    Germination

    The process by which a seed develops into a new plant.

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    Stolon/Runner

    A specialized stem that grows horizontally aboveground, producing new plants at the nodes touching the soil. They're involved in asexual reproduction.

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    Tuber

    An enlarged underground stem that stores food. Examples include potatoes and sweet potatoes.

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    Rhizome

    A long, fleshy underground stem that grows parallel to the ground, storing food. Examples include ginger.

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    Bulb

    A thickened base of leaves that stores food. Examples include onions and garlic.

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    Corm

    A short, vertical, and thick underground stem that stores food. Examples include Gabi or Taro.

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    Succulent Stem

    A fleshy, often leafless stem that stores water. Examples include cacti.

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    Stamen

    The male reproductive part of a flower, responsible for producing pollen.

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    Filament (Stamen)

    The filament supports the anther and acts as a pathway for pollen grains.

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    Anther (Stamen)

    The part of the stamen that produces pollen grains.

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    Pistil

    The female reproductive part of a flower, responsible for receiving pollen and developing seeds.

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    Stigma (Pistil)

    The sticky, feathery part of the pistil where pollen grains land and germinate.

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    Style (Pistil)

    The tube connecting the stigma to the ovary, through which pollen travels.

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    Ovary (Pistil)

    The lower part of the pistil, containing the ovules that will develop into seeds.

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    Ovules (Pistil)

    The tiny structures inside the ovary that develop into seeds after fertilization.

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    Study Notes

    Plant Structure and Function

    • Plants, like animals, reproduce—for species continuation—either sexually or asexually.
    • Plants are eukaryotes, containing chlorophyll.
    • Plants are either vascular or non-vascular
    • Nonvascular plants lack vessels for transporting water and nutrients, usually live in moist areas, and reproduce with water's aid.
    • Vascular plants have internal channels to transport water and nutrients and can be gymnosperms or angiosperms.
    • Gymnosperms are seed-bearing plants where seeds are not enclosed in fruit.
    • Angiosperms are plants with seeds enclosed in fruit.
    • Monocots and dicots are two categories of angiosperms differing in seed structure, stem, leaf, and floral arrangements.
    • Modified stems, like rhizomes, bulbs, and corms, are adapted for functions like food storage or propagation.
    • Flowers are reproductive structures with male (stamen) and female (pistil) parts, responsible for sexual reproduction (pollination).
    • Sepals protect the flower bud and calyx before the flower opens.
    • Petals or corolla, in bright colors, attract pollinators (animals or wind) that contribute to reproduction.

    Pollination

    • Pollination is the transfer of pollen (containing sperm) from the stamen to the pistil.
    • Pollination could be self-pollination or cross-pollination.
    • Self-pollination is the pollen transfer within the same flower or the one from the same plant—this ensures the plants' genetic stability.
    • Cross-pollination involves the transfer of pollen from one plant to another.
    • After pollination, the sperm cell fertilizes the egg, forming a zygote.
    • The zygote develops into an embryo that contains in the seed; this structure will form new plants.

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    Description

    Explore the fascinating world of plant structure and function in this quiz. Learn about the differences between vascular and non-vascular plants, the classification of angiosperms and gymnosperms, and the roles of various plant parts in reproduction and survival. Test your knowledge and understanding of these essential botanical concepts.

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