Flowers are reproductive structures of plants. Complete flowers contain both male and female reproductive parts and produce both gametes (sex cells). The male gamete is pollen and the female gamete is ova. Gametes contain the genetic information for the next generation.
Many kinds of flowering plants, such as lilies, daffodils, or tulips are commonly subjects for dissection in biology. The flower is the plant structure specialized for reproduction in advanced plants. The processes of meiosis and fertilization occur in the flower.
Some Key Flower structures
petals: colored parts inside the sepals which attract insects
sepals: structures which are usually green outside the petals which help to protect the flower
stamen: forms the male reproductive organ and consists of an anther and a filament
anther: pollen box in which pollen grains are formed containing the genetic material which produces sperm
filament: supports the anther
pistil or carpel: female reproductive organ which consists of three parts
stigma: found at the top of the pistil, is often sticky and hairy adapting it to catch and hold pollen
style: tube-like connection between the stigma and the ovary
ovary: enlarged part of the pistil attached to the receptacle (stem tip on which the flower rests) and contains the ovules
ovules: small white structures within the walls of the ovary which produces the plant egg cells
Tables from Regents Prep: Living Environment
Our Daffodil Dissection
Flowers are reproductive organs of plants.
A daffodil has one fused petal that surrounds and protects the pistil and stamen.
Reproductive Parts -- pistil surrounded by 6 stamen
Stamen are male reproductive parts which make pollen (male gametes).
The pistil is the female reproductive organ which makes eggs (female gametes).
Example of Student Dissection
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