Biology Chapter on Vegetative Propagation
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Questions and Answers

What is the main characteristic of vegetative propagation in plants?

  • Occurs exclusively in flowering plants
  • Requires two parent plants for reproduction
  • Produces offspring that are clones of the parent (correct)
  • Involves genetic variation among offspring

Which of the following is NOT a modified part of the plant often used in vegetative propagation?

  • Stem tubers
  • Flowers (correct)
  • Runners
  • Plantlets

What is one primary disadvantage of asexual reproduction in flowering plants?

  • It offers no variation among offspring (correct)
  • It requires significant energy investment
  • It can lead to genetic variation
  • It produces fewer plants than sexual reproduction

Which statement correctly describes micropropagation?

<p>It is the removal of cells from a plant to grow them in tissue culture (D)</p> Signup and view all the answers

Which of the following methods is considered a form of artificial propagation?

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

What advantage does sexual reproduction provide to flowering plants?

<p>Higher resistance to disease (B)</p> Signup and view all the answers

Which example correctly matches a modified leaf with its corresponding plant?

<p>Plantlets - Lily (D)</p> Signup and view all the answers

Which of the following is a disadvantage of sexual reproduction in flowering plants?

<p>Slower growth of mature plants (D)</p> Signup and view all the answers

Which of the following is an example of a modified stem used in vegetative propagation?

<p>Runners from strawberries (A)</p> Signup and view all the answers

What is a key disadvantage of asexual reproduction in flowering plants?

<p>Lack of variation among offspring (C)</p> Signup and view all the answers

Which plant part is typically modified to form plantlets?

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

Which of the following methods is NOT a form of artificial propagation?

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

What is a benefit of using micropropagation in plant reproduction?

<p>Rapid production of uniform plants (B)</p> Signup and view all the answers

Which of these is a primary reason flowering plants engage in sexual reproduction?

<p>To increase genetic variation (A)</p> Signup and view all the answers

What is a common characteristic of a root tuber?

<p>It grows underground and stores nutrients. (D)</p> Signup and view all the answers

Which of the following characteristics is NOT true regarding asexual reproduction?

<p>It requires two parent plants for fertilization. (C)</p> Signup and view all the answers

Study Notes

Vegetative Propagation

  • Asexual reproduction method in plants with one parent, resulting in offspring that are clones.
  • Involves modification of certain plant parts for propagation purposes.

Modified Plant Parts for Propagation

  • Stem: Runners (e.g., strawberry) and Stem tubers (e.g., potato).
  • Root: Root tuber (e.g., Dahlia).
  • Leaf: Plantlets (e.g., lily).
  • Bud: Modified bulb (e.g., onion).

Advantages of Sexual Reproduction in Flowering Plants

  • Enhances resistance to diseases through genetic diversity.
  • Allows dispersal of seeds, reducing competition for resources.

Advantages of Asexual Reproduction in Flowering Plants

  • Minimizes waste as no energy is spent on producing seeds.
  • Enables rapid growth and establishment of new plants.

Disadvantages of Sexual Reproduction in Flowering Plants

  • Young plants take considerable time to reach maturity.
  • Can be wasteful due to energy expended on pollination and seed production.

Disadvantages of Asexual Reproduction in Flowering Plants

  • Lacks genetic variation, making all clones susceptible to the same diseases.
  • A single disease outbreak can wipe out entire populations of cloned plants.

Methods of Artificial Propagation

  • Various techniques include cutting, layering, grafting, and micropropagation.

Micropropagation

  • Involves removing cells from a plant and culturing them in a special medium to grow new plants.

Vegetative Propagation

  • Asexual reproduction method in plants with one parent, resulting in offspring that are clones.
  • Involves modification of certain plant parts for propagation purposes.

Modified Plant Parts for Propagation

  • Stem: Runners (e.g., strawberry) and Stem tubers (e.g., potato).
  • Root: Root tuber (e.g., Dahlia).
  • Leaf: Plantlets (e.g., lily).
  • Bud: Modified bulb (e.g., onion).

Advantages of Sexual Reproduction in Flowering Plants

  • Enhances resistance to diseases through genetic diversity.
  • Allows dispersal of seeds, reducing competition for resources.

Advantages of Asexual Reproduction in Flowering Plants

  • Minimizes waste as no energy is spent on producing seeds.
  • Enables rapid growth and establishment of new plants.

Disadvantages of Sexual Reproduction in Flowering Plants

  • Young plants take considerable time to reach maturity.
  • Can be wasteful due to energy expended on pollination and seed production.

Disadvantages of Asexual Reproduction in Flowering Plants

  • Lacks genetic variation, making all clones susceptible to the same diseases.
  • A single disease outbreak can wipe out entire populations of cloned plants.

Methods of Artificial Propagation

  • Various techniques include cutting, layering, grafting, and micropropagation.

Micropropagation

  • Involves removing cells from a plant and culturing them in a special medium to grow new plants.

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Description

Test your understanding of vegetative propagation in plants with this quiz. Explore various modifications of plant parts such as stems, roots, and leaves as well as examples of plants that utilize these methods. Perfect for students looking to deepen their knowledge of asexual reproduction in botany.

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