BotanyLesson 1 of 1 in the course Plant Reproduction

Plant Propagation, Life-Cycle Patterns, and Senescence

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

This lesson introduces asexual reproduction in plants and explores the natural structures and processes that allow plants to produce new individuals without seeds formed through fertilization.

Asexual reproduction produces a new plant without the fusion of male and female gametes. The new plant is generally genetically identical to its parent because its genetic material is not formed by mixing gametes. Such genetically identical individuals are often called clones.

All flashcards

What is apomixis?
Seed production without fertilization, in which a diploid ovule or part of the ovary gives rise to a seed.
What is a stolon?
A runner used for vegetative propagation; strawberry plants spread using stolons.
What are adventitious roots?
Roots that arise from plant parts other than the main or primary root.
What is a rhizome?
A horizontal underground stem, as found in ginger and iris.
How does apomixis differ from vegetative propagation?
Apomixis produces seeds without fertilization; vegetative propagation produces plants from structures such as stems, roots, or leaves.

Quiz questions

  1. In plant grafting, what is joined?Answer: A scion is joined to a rooted stock.
  2. How long does a biennial typically take to complete its life cycle?Answer: Two seasons.
  3. How does layering produce a new plant?Answer: Roots form on a buried stem that remains attached until it can be separated.
  4. Which plant hormone can cause senescence to begin prematurely?Answer: Abscisic acid.
  5. What defines a polycarpic plant?Answer: It flowers more than once during its lifetime.

Based on Biology 2e by Mary Ann Clark, Matthew Douglas, Jung Choi (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.

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