Question

Draw a diagram of a flower and name the parts.

Answer 1

A flower is a reproductive structure found in flowering plants. The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs. The essential parts of a flower can be considered in two parts: the vegetative part, consisting of petals and associated structures in the perianth, and the reproductive or sexual parts. A stereotypical flower consists of four kinds of structures attached to the tip of a short stalk.

• Calyx: The outermost whorl consisting of units called sepals. These are typically green and enclose the rest of the flower in the bud stage, however, they can be absent or prominent and petal-like in some species.
  
• Corolla: The next whorl toward the apex is composed of units called petals. It is typically thin, soft and coloured to attract animals that help the process of pollination.
  
• Androecium: The next whorl (sometimes multiplied into several whorls), consists of units called stamens. Stamens consist of two parts: a stalk called a filament, topped by an anther where pollen is produced by meiosis and eventually dispersed.
  
• Gynoecium: The innermost whorl of a flower, consisting of one or more units called carpels. The carpel or multiple fused carpels form a hollow structure called an ovary, which produces ovules internally.