Flower Questions - Easy Answers

E. Name the following

  1. Calyx - The whorl of a flower that contains sepals
  2. Corolla - The whorl of a flower that contains petals
  3. Androecium - The male reproductive part of a flower
  4. Gynoecium/Pistil - The female reproductive part of a flower
  5. Bisexual flower - The flower that contains both male and female reproductive part

F. Differentiate between

1. Bisexual flowers and monosexual flowers

  • Bisexual: Both male + female parts in one flower. Ex: Hibiscus
  • Monosexual: Only male OR only female parts in one flower. Ex: Papaya

2. Self-pollination and cross-pollination

  • Self-pollination: Pollen from anther falls on stigma of same flower.
  • Cross-pollination: Pollen from anther of one flower falls on stigma of another plant's flower.

G. Answer the following questions

  1. What is pedicel?
    Pedicel is the thin stalk that attaches the flower to the plant stem.
  2. Draw a diagram to show different whorls of a flower.
    Label from outside to inside: 1. Calyx-sepals 2. Corolla-petals 3. Androecium-stamens 4. Gynoecium-pistil
  3. What is the role of petals in a flower?
    Petals are colorful. They attract insects/bees for pollination and protect inner parts.
  4. Name the different parts of androecium and gynoecium.
    Androecium: Made of stamens. Each stamen = Anther + Filament
    Gynoecium: Made of pistil. Each pistil = Stigma + Style + Ovary
  5. Where are the male and female gametes of flowers found?
    Male gametes: Inside pollen grains in the anther
    Female gametes: Inside ovules in the ovary
7. What is pollination? Explain the process of pollination.

Pollination is the transfer of pollen from anther to stigma of a flower.

Process:

  1. Pollen grains form in the anther of stamen.
  2. Wind, bees, or insects carry pollen to the stigma.
  3. Pollen sticks to the sticky stigma. This is pollination.
  4. Then fertilization happens and seeds are formed.