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28.1 Reproductive strategies
  • Flowering plants have a life cycle in which two generations alternate. The plant that bears flowers is the sporophyte.
  • Flowering plants are heterosporous; the sporophyte produces microspores and megaspores.
  • Adaptation to a land environment includes a sperm-bearing mature pollen grain (male gametophyte), and an egg-bearing female gametophyte retained within the body of the sporophyte.
  1. What are the functions of flowers?
  2. What is the difference between monoecious and dioecious plants?
  3. What is one adaptation which promotes cross pollination?
Essential Study Partner Summaries of major points
  1. A life cycle....
  2. The sporophyte
  3. The gametophytes
  4. Pollination and fertilization
Art Review Art Quizzes
28.2 Seed development
  • The eudicot embryo goes through a series of stages; once the cotyledons appear, it is possible to distinguish the shoot apical meristem and the root apical meristem.
  • A seed has a seed coat, an embryo, and stored food.
  1. What tissue do the outermost cells of a plant embryo become and what is its function?
  2. What are the parts of a mature embryo and what does each become?
Essential Study Partner Summaries of major points
  1. Stages in development of eudicot embryo
  2. Embryonic development
Art Review
  • Development of an eudicot embryo
28.3 Fruits
  • In flowering plants, seeds are enclosed by fruits, which develop from the ovary and possibly other parts of a flower.
  • Fruits aid the dispersal of seeds.
  1. What is the botanical definition of a fruit?
  2. Fruits which develop from single carpels are called _______________ fruits and those which develop from more than one individual ovaries are called _______________ fruits.
  3. From what flower structure is the majority of tissue in an accessory fruit derived from?
  4. What are the environmental conditions required for seeds to germinate?
Essential Study Partner Summaries of major points
  1. Seeds and fruits
  2. Types of fruits
  3. Seed dispersal
  4. Seed germination
Labeling Exercises Art Review
28.4 Asexual reproduction
  • Many flowering plants have an asexual means of propagation (i.e., from nodes of stems or from roots).
  • Many plants can be regenerated in tissue culture from meristem tissue and from individual cells. This has contributed to the genetic engineering of plants.
  1. What does it mean that plant cells are totipotent?
  2. What is a transgenic plant?
Essential Study Partner Summaries of major points
  1. Means of asexual propagation
  2. Tissue culture of plants
  3. Genetic engineering of plants
Art Review

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