Chapter 5 - Life of a Plant
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Chapter 5 - Life of a Plant

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@Dr. K. Viswanath

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Questions and Answers

What is the first step in the life cycle of a plant?

  • Adult plant produces seeds
  • Seedling emerges
  • Seed is sown in the ground (correct)
  • Flowers are produced
  • What is the protective covering of a seed called?

  • Covering shell
  • Seed coat (correct)
  • Seed capsule
  • Seedling coat
  • Which process allows a young plant to make food?

  • Fertilization
  • Decaying
  • Respiration
  • Photosynthesis (correct)
  • What do the roots of a young plant primarily help it obtain?

    <p>Water and minerals</p> Signup and view all the answers

    How long does it typically take for a young plant to produce flowers?

    <p>One month</p> Signup and view all the answers

    What happens when the pollen meets the ovules in the ovary of a flower?

    <p>The ovary grows into fruit</p> Signup and view all the answers

    What is necessary for seeds to begin growing?

    <p>Air, water, and warmth</p> Signup and view all the answers

    How do fruits relate to the life cycle of a flowering plant?

    <p>They can be sown to produce new plants</p> Signup and view all the answers

    What role do the leaves of a young plant play in its development?

    <p>They facilitate photosynthesis.</p> Signup and view all the answers

    In the life cycle of a flowering plant, how does the ovary contribute to reproduction?

    <p>It develops into the fruit after fertilization.</p> Signup and view all the answers

    What is the primary function of the root during the early stages of a plant's life cycle?

    <p>To absorb water and minerals from the soil.</p> Signup and view all the answers

    During which step of a plant's life cycle does the seed first begin to grow?

    <p>When the root grows downwards.</p> Signup and view all the answers

    What characterizes a flowering plant’s method of reproduction?

    <p>It involves the combination of male and female gametes through flowers.</p> Signup and view all the answers

    What is the main factor that influences whether a seed will germinate?

    <p>The availability of air, water, and warmth.</p> Signup and view all the answers

    What happens to a seed after it successfully germinates?

    <p>It grows into a seedling and develops a root system.</p> Signup and view all the answers

    What is primarily contained within the fruit of a flowering plant?

    <p>Seeds that can initiate new life cycles.</p> Signup and view all the answers

    The life cycle of most plants begins with ______.

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

    The young plant that emerges from the seed is called a ______.

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

    The first part of the plant to develop is the ______.

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

    Leaves on young plants make food through the process of ______.

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

    After about one month, a young plant begins to produce ______.

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

    Fruits produced by plants contain ______.

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

    The male gametes of flowering plants are found in the ______.

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

    Ovules, contained in the ovary of the flower, are similar to ______ in animals.

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

    After the seedling emerges, it grows into a fully grown ______.

    <p>adult plant</p> Signup and view all the answers

    The young plant grows and develops ______ after the seedling stage.

    <p>its leaves</p> Signup and view all the answers

    The process by which seeds grow into new plants is called ______.

    <p>seed germination</p> Signup and view all the answers

    The ______ of the flower contains female gametes called ovules.

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

    Fruits bear ______, which can be sown to produce new plants.

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

    The roots help the young plant obtain ______ and minerals from the soil.

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

    The ______ is responsible for the reproduction of flowering plants through flowers.

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

    After about two months, the young plant typically produces ______.

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

    A seedling emerges before the roots develop downwards.

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

    Seeds can only germinate with the presence of air and water.

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

    The ovary of a flower develops into the seed.

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

    Photosynthesis occurs in the leaves of the young plant.

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

    The life cycle of a flowering plant begins with flowers.

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

    Pollens in the anther and ovules in the ovary are necessary for plant reproduction.

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

    Fruits only serve to provide nourishment for the young plants.

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

    It typically takes about two weeks for a young plant to produce flowers.

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

    How does a seedling obtain its initial food during the early stages of growth?

    <p>A seedling obtains its initial food from the seed leaves.</p> Signup and view all the answers

    Describe the role of chlorophyll in the leaves of a young plant.

    <p>Chlorophyll enables the leaves to perform photosynthesis, allowing the young plant to convert sunlight into food.</p> Signup and view all the answers

    What happens to the ovary of a flower after fertilization occurs?

    <p>After fertilization, the ovary of the flower grows into the fruit of the plant.</p> Signup and view all the answers

    Explain the importance of conditions such as air, water, and warmth for seed germination.

    <p>Seeds require air, water, and warmth to trigger the germination process, allowing them to sprout and begin growing.</p> Signup and view all the answers

    How do roots contribute to the development of a young plant?

    <p>Roots anchor the young plant and absorb water and minerals from the soil, supporting its growth.</p> Signup and view all the answers

    In what way do fruits facilitate the continuation of a plant's life cycle?

    <p>Fruits contain seeds that can be sown to produce new plants, thus continuing the life cycle.</p> Signup and view all the answers

    How does pollination affect the reproductive process in flowering plants?

    <p>Pollination allows the male gametes in the pollen to fertilize the female gametes in the ovules, leading to seed formation.</p> Signup and view all the answers

    What triggers the growth of a seed into a seedling?

    <p>The growth of a seed into a seedling is triggered by the absorption of water, which activates metabolic processes.</p> Signup and view all the answers

    Study Notes

    Life Cycle of a Plant

    • Plants have a distinct life cycle that differs from animals.
    • The life cycle begins with seeds, which sprout into seedlings once sown in the ground.
    • Germination requires air, water, and warmth for seeds to grow.

    Stages of Development

    • Seed: The initial stage, which initiates the life cycle.
    • Root Development: Roots grow downwards first, anchoring the plant.
    • Seedling Emergence: A young plant appears, showcasing the first leaves.
    • Growth of Leaves: The young plant grows, and its leaves develop for photosynthesis.
    • Flower Production: After about one month, the plant begins to produce flowers.
    • Fruit Development: Approximately two months post germination, fruits form, containing seeds for propagation.

    Seed Structure and Function

    • Seeds have a protective outer coat known as the seed coat.
    • Their nourishment during early growth comes from seed leaves until they can photosynthesize.

    Photosynthesis and Nutrient Absorption

    • Young plants utilize sunlight, chlorophyll, water, and air to produce food.
    • Roots absorb water and minerals from the soil, supporting plant growth.

    Reproductive Mechanism

    • Flowers serve as the reproductive organs of flowering plants.
    • Male gametes are contained in the pollen, while female gametes are found in ovules within the ovary.
    • Fertilization occurs when pollen meets ovules, leading to fruit formation.
    • Ovules develop into seeds within the fruit, capable of growing into new plants.

    Key Stages of Flowering Plant Life Cycle

    • Seed Germination: Requires essential conditions to grow.
    • Seedling Stage: Young plants develop leaves for photosynthesis after dropping seed leaves.
    • Adult Plant Stage: Mature plants produce flowers, leading to the formation of fruits and seeds, completing the life cycle.

    Life Cycle of a Plant

    • Plants have a distinct life cycle that differs from animals.
    • The life cycle begins with seeds, which sprout into seedlings once sown in the ground.
    • Germination requires air, water, and warmth for seeds to grow.

    Stages of Development

    • Seed: The initial stage, which initiates the life cycle.
    • Root Development: Roots grow downwards first, anchoring the plant.
    • Seedling Emergence: A young plant appears, showcasing the first leaves.
    • Growth of Leaves: The young plant grows, and its leaves develop for photosynthesis.
    • Flower Production: After about one month, the plant begins to produce flowers.
    • Fruit Development: Approximately two months post germination, fruits form, containing seeds for propagation.

    Seed Structure and Function

    • Seeds have a protective outer coat known as the seed coat.
    • Their nourishment during early growth comes from seed leaves until they can photosynthesize.

    Photosynthesis and Nutrient Absorption

    • Young plants utilize sunlight, chlorophyll, water, and air to produce food.
    • Roots absorb water and minerals from the soil, supporting plant growth.

    Reproductive Mechanism

    • Flowers serve as the reproductive organs of flowering plants.
    • Male gametes are contained in the pollen, while female gametes are found in ovules within the ovary.
    • Fertilization occurs when pollen meets ovules, leading to fruit formation.
    • Ovules develop into seeds within the fruit, capable of growing into new plants.

    Key Stages of Flowering Plant Life Cycle

    • Seed Germination: Requires essential conditions to grow.
    • Seedling Stage: Young plants develop leaves for photosynthesis after dropping seed leaves.
    • Adult Plant Stage: Mature plants produce flowers, leading to the formation of fruits and seeds, completing the life cycle.

    Life Cycle of a Plant

    • Plants have a distinct life cycle that differs from animals.
    • The life cycle begins with seeds, which sprout into seedlings once sown in the ground.
    • Germination requires air, water, and warmth for seeds to grow.

    Stages of Development

    • Seed: The initial stage, which initiates the life cycle.
    • Root Development: Roots grow downwards first, anchoring the plant.
    • Seedling Emergence: A young plant appears, showcasing the first leaves.
    • Growth of Leaves: The young plant grows, and its leaves develop for photosynthesis.
    • Flower Production: After about one month, the plant begins to produce flowers.
    • Fruit Development: Approximately two months post germination, fruits form, containing seeds for propagation.

    Seed Structure and Function

    • Seeds have a protective outer coat known as the seed coat.
    • Their nourishment during early growth comes from seed leaves until they can photosynthesize.

    Photosynthesis and Nutrient Absorption

    • Young plants utilize sunlight, chlorophyll, water, and air to produce food.
    • Roots absorb water and minerals from the soil, supporting plant growth.

    Reproductive Mechanism

    • Flowers serve as the reproductive organs of flowering plants.
    • Male gametes are contained in the pollen, while female gametes are found in ovules within the ovary.
    • Fertilization occurs when pollen meets ovules, leading to fruit formation.
    • Ovules develop into seeds within the fruit, capable of growing into new plants.

    Key Stages of Flowering Plant Life Cycle

    • Seed Germination: Requires essential conditions to grow.
    • Seedling Stage: Young plants develop leaves for photosynthesis after dropping seed leaves.
    • Adult Plant Stage: Mature plants produce flowers, leading to the formation of fruits and seeds, completing the life cycle.

    Life Cycle of a Plant

    • Plants have a distinct life cycle that differs from animals.
    • The life cycle begins with seeds, which sprout into seedlings once sown in the ground.
    • Germination requires air, water, and warmth for seeds to grow.

    Stages of Development

    • Seed: The initial stage, which initiates the life cycle.
    • Root Development: Roots grow downwards first, anchoring the plant.
    • Seedling Emergence: A young plant appears, showcasing the first leaves.
    • Growth of Leaves: The young plant grows, and its leaves develop for photosynthesis.
    • Flower Production: After about one month, the plant begins to produce flowers.
    • Fruit Development: Approximately two months post germination, fruits form, containing seeds for propagation.

    Seed Structure and Function

    • Seeds have a protective outer coat known as the seed coat.
    • Their nourishment during early growth comes from seed leaves until they can photosynthesize.

    Photosynthesis and Nutrient Absorption

    • Young plants utilize sunlight, chlorophyll, water, and air to produce food.
    • Roots absorb water and minerals from the soil, supporting plant growth.

    Reproductive Mechanism

    • Flowers serve as the reproductive organs of flowering plants.
    • Male gametes are contained in the pollen, while female gametes are found in ovules within the ovary.
    • Fertilization occurs when pollen meets ovules, leading to fruit formation.
    • Ovules develop into seeds within the fruit, capable of growing into new plants.

    Key Stages of Flowering Plant Life Cycle

    • Seed Germination: Requires essential conditions to grow.
    • Seedling Stage: Young plants develop leaves for photosynthesis after dropping seed leaves.
    • Adult Plant Stage: Mature plants produce flowers, leading to the formation of fruits and seeds, completing the life cycle.

    Life Cycle of a Plant

    • Plants have a distinct life cycle that differs from animals.
    • The life cycle begins with seeds, which sprout into seedlings once sown in the ground.
    • Germination requires air, water, and warmth for seeds to grow.

    Stages of Development

    • Seed: The initial stage, which initiates the life cycle.
    • Root Development: Roots grow downwards first, anchoring the plant.
    • Seedling Emergence: A young plant appears, showcasing the first leaves.
    • Growth of Leaves: The young plant grows, and its leaves develop for photosynthesis.
    • Flower Production: After about one month, the plant begins to produce flowers.
    • Fruit Development: Approximately two months post germination, fruits form, containing seeds for propagation.

    Seed Structure and Function

    • Seeds have a protective outer coat known as the seed coat.
    • Their nourishment during early growth comes from seed leaves until they can photosynthesize.

    Photosynthesis and Nutrient Absorption

    • Young plants utilize sunlight, chlorophyll, water, and air to produce food.
    • Roots absorb water and minerals from the soil, supporting plant growth.

    Reproductive Mechanism

    • Flowers serve as the reproductive organs of flowering plants.
    • Male gametes are contained in the pollen, while female gametes are found in ovules within the ovary.
    • Fertilization occurs when pollen meets ovules, leading to fruit formation.
    • Ovules develop into seeds within the fruit, capable of growing into new plants.

    Key Stages of Flowering Plant Life Cycle

    • Seed Germination: Requires essential conditions to grow.
    • Seedling Stage: Young plants develop leaves for photosynthesis after dropping seed leaves.
    • Adult Plant Stage: Mature plants produce flowers, leading to the formation of fruits and seeds, completing the life cycle.

    Life Cycle of a Plant

    • Plants have a distinct life cycle that differs from animals.
    • The life cycle begins with seeds, which sprout into seedlings once sown in the ground.
    • Germination requires air, water, and warmth for seeds to grow.

    Stages of Development

    • Seed: The initial stage, which initiates the life cycle.
    • Root Development: Roots grow downwards first, anchoring the plant.
    • Seedling Emergence: A young plant appears, showcasing the first leaves.
    • Growth of Leaves: The young plant grows, and its leaves develop for photosynthesis.
    • Flower Production: After about one month, the plant begins to produce flowers.
    • Fruit Development: Approximately two months post germination, fruits form, containing seeds for propagation.

    Seed Structure and Function

    • Seeds have a protective outer coat known as the seed coat.
    • Their nourishment during early growth comes from seed leaves until they can photosynthesize.

    Photosynthesis and Nutrient Absorption

    • Young plants utilize sunlight, chlorophyll, water, and air to produce food.
    • Roots absorb water and minerals from the soil, supporting plant growth.

    Reproductive Mechanism

    • Flowers serve as the reproductive organs of flowering plants.
    • Male gametes are contained in the pollen, while female gametes are found in ovules within the ovary.
    • Fertilization occurs when pollen meets ovules, leading to fruit formation.
    • Ovules develop into seeds within the fruit, capable of growing into new plants.

    Key Stages of Flowering Plant Life Cycle

    • Seed Germination: Requires essential conditions to grow.
    • Seedling Stage: Young plants develop leaves for photosynthesis after dropping seed leaves.
    • Adult Plant Stage: Mature plants produce flowers, leading to the formation of fruits and seeds, completing the life cycle.

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    Description

    Explore the fascinating life cycle of a plant in this quiz. Understand the stages from seed to seedling and finally to the adult plant. Test your knowledge on how plants grow and thrive in their environment.

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