A diagram of a flower is provided with parts labelled I to VII. Identify each labelled part and describe its function. State the type of pollination and two advantages of this method.

Here are the answers to the questions about the flower:

1.

• a) Name the parts labelled I, II, III, IV, V, VI and VII.

  • I: Stigma
  • II: Anther
  • III: Petal
  • IV: Sepal
  • V: Ovary
  • VI: Receptacle
  • VII: Filament

• b) Give one (1) function each of the parts labelled I, II, III, IV, V, VI and VII.

  • I (Stigma): Receives pollen grains during pollination.
  • II (Anther): Produces and contains pollen grains.
  • III (Petal): Attracts pollinators with its bright colors and scent.
  • IV (Sepal): Protects the flower bud before it opens.
  • V (Ovary): Contains the ovules and develops into the fruit after fertilization.
  • VI (Receptacle): The part of the flower stalk where the floral organs are attached.
  • VII (Filament): Supports the anther, holding it in position.

• c) State one (1) type by which the flower is pollinated.

  • Insect pollination

• d) Describe two (2) advantages to the type of pollination stated in (c) above.

  • 1. Efficiency: Insect pollination is more targeted and efficient than wind pollination, as insects directly transfer pollen to the stigma, increasing the chances of successful fertilization.
  • 2. Genetic Diversity: It often promotes cross-pollination between different plants, leading to greater genetic variation in the offspring, which can enhance the species' adaptability and survival.