Plant Reproductive System

• What is the primary purpose of plant reproduction?

  To create new plants and increase population
• What are the two main types of plant reproduction?

  • Sexual Reproduction
  • Asexual Reproduction
• What do ovules become after fertilization?

  Seeds that grow into new plants
• What are the green leaf-like structures at the base of the flower called?

  Sepals
• How does sexual reproduction in plants occur?

  By combining genetic material from two parents
• What is the role of stamens in a flower?

  They are the male reproductive parts
• What do flowers use to fertilize ovules?

  Pollen
• What are sepals also known as?

  Calyx
• What are the petals of a flower called?

  Corolla
• What is the function of the pistil in a flower?

  It contains ovules for reproduction
• What are the four main parts of a flower?

  Sepals, petals, stamens, and pistils
• What is the function of sepals in a flower?

  They protect the flower bud before blooming
• What is the female reproductive part of a flower called?

  Pistil
• What is the outer part of a flower called?

  Petals
• What do stamens contain that is crucial for reproduction?

  Pollen-bearing anthers
• What are the main parts of a flower and their functions?

  • Sepals (calyx): Protect flower buds
  • Petals (corolla): Attract pollinators
  • Stamens: Male parts with pollen
  • Pistil: Female part containing ovules
• What do ovules in the pistil represent?

  Egg cells
• What is a characteristic of asexual reproduction in plants?

  Involves a single parent creating offspring
• What are the female reproductive parts of a flower called?

  Pistil
• How do both sexual and asexual reproduction benefit plants?

  • Ensure plant survival
  • Allow spread across different areas
• What is the function of the stigma in a flower?

  To receive pollen grains
• What is the name of the structure that contains the egg nucleus in a flower?

  Ovule
• What is the name of the structure that contains the sperm nuclei in a flower?

  Pollen tube
• What are the main steps in the reproduction process of flowering plants?

  1. Pollination: Pollen grains are transferred from the anther to the stigma
  2. Fertilization: Pollen tube grows down the style, sperm nuclei fuse with egg nucleus
  3. Seed development: Ovule develops into a seed containing the embryo
  4. Seed dispersal: Seeds are released and dispersed to grow new plants
• What are the main parts of a flower and their functions?

  • Petals (corolla): Attract pollinators
  • Stamens: Male reproductive parts that produce pollen
  • Pistil: Female reproductive part that receives pollen and produces seeds
  • Sepals (calyx): Protect the flower bud
  • Ovules (egg cells): Develop into seeds after fertilization
• What is the name of the structure that contains the egg nucleus in a flower?

  Ovule
• How does the seed structure support the growth of a new plant?

  • Seed coat protects the embryo
  • Endosperm provides food reserves to nourish the embryo during germination
  • Embryo contains the radicle (root), plumule (shoot), and cotyledons (first leaves)
  • Zygote develops into the embryo during seed formation
• What is the male organ of a flower called?

  Stamen
• How does the structure of a flower facilitate pollination?

  • Petals and sepals attract pollinators like insects and birds
  • Anthers produce pollen grains that can be transferred to the stigma
  • Stigma is positioned to receive pollen from visiting pollinators
  • Style provides a pathway for pollen tubes to reach the ovule
• What are the two parts of the stamen?

  Anther and filament
• What is the name of the structure labeled "Style" in the image?

  Style
• What is the name of the male reproductive part of a flower?

  Stamen
• What are the main parts of the ovule structure shown in the image?

  • Nucellus
  • 2 polar nuclei
  • Egg cell
  • Integuments
• What are the key differences between sexual and asexual reproduction in plants?

  Sexual reproduction:

  • Involves fusion of male and female gametes
  • Produces genetically diverse offspring
  • Requires pollination and fertilization

  
  

  Asexual reproduction:

  • Does not involve gametes or fertilization
  • Produces genetically identical offspring
  • Can occur through vegetative structures like runners, bulbs, or spores
• What are the main components of the stamen and their functions?

  • Anther: Produces pollen grains
  • Filament: Supports the anther
• What is the role of the style in a carpel?

  It connects the stigma to the ovary
• What do pollen grains contain?

  Male reproductive cells (sperm nuclei)
• What are integuments in the context of ovules?

  Protective outer layers of ovules
• What is the role of pollen in fertilization?

  To fertilize female egg cells
• What structures develop inside the ovary?

  • Ovules
  • Integuments: Protective outer layers
  • Nucellus: Food-rich tissue
  • Female gametes: Egg cell and 2 polar nuclei