Online Test — Sexual Reproduction in Flowering Plants
17 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 17
The male reproductive part of a flower is the:
Gynoecium
Androecium
Calyx
Corolla
Explanation: The androecium (stamens) is the male part.
Question 2 of 17
Each stamen consists of a filament and a/an:
Anther
Stigma
Style
Ovary
Explanation: A stamen has a filament and an anther.
Question 3 of 17
Pollen grains are produced inside the:
Ovary
Anther
Stigma
Style
Explanation: Pollen grains develop inside the anther.
Question 4 of 17
The tough outer wall of a pollen grain is made of:
Cellulose
Sporopollenin
Lignin
Cutin
Explanation: The exine is made of resistant sporopollenin.
Question 5 of 17
The female reproductive part of a flower is the:
Stamen
Pistil
Petal
Sepal
Explanation: The pistil (gynoecium) is the female part.
Question 6 of 17
The part of the pistil that receives pollen is the:
Ovary
Style
Stigma
Funicle
Explanation: The stigma receives pollen grains.
Question 7 of 17
Ovules are found inside the:
Anther
Ovary
Stigma
Filament
Explanation: Ovules are enclosed in the ovary.
Question 8 of 17
The female gametophyte of a flowering plant is the:
Pollen grain
Embryo sac
Anther
Stigma
Explanation: The embryo sac is the female gametophyte.
Question 9 of 17
A typical embryo sac is:
7-celled, 8-nucleate
2-celled
Single-celled
5-celled
Explanation: The typical embryo sac is 7-celled and 8-nucleate.
Question 10 of 17
Transfer of pollen to the stigma of the same flower is:
Cross-pollination
Self-pollination
Fertilisation
Germination
Explanation: Pollen reaching the same flower/plant is self-pollination.
Question 11 of 17
Pollen reaches the ovule by growing a:
Root
Pollen tube
Shoot
Leaf
Explanation: The pollen tube grows down the style carrying male gametes.
Question 12 of 17
Fusion of a male gamete with the egg cell forming the zygote is called:
Triple fusion
Syngamy
Pollination
Dispersal
Explanation: Syngamy is the fusion of a male gamete with the egg.
Question 13 of 17
Fusion of a male gamete with the two polar nuclei forms the:
Zygote
Endosperm (3n)
Pollen grain
Seed coat
Explanation: Triple fusion gives the triploid endosperm.
Question 14 of 17
The two fusions occurring in flowering plants together are called:
Single fertilisation
Double fertilisation
Self-pollination
Cross-pollination
Explanation: Syngamy plus triple fusion = double fertilisation, unique to angiosperms.
Question 15 of 17
After fertilisation, the ovary develops into the:
Seed
Fruit
Flower
Root
Explanation: The ovary becomes the fruit; the ovule becomes the seed.
Question 16 of 17
The maturing of anther and stigma at different times to favour cross-pollination is:
Dichogamy
Apomixis
Parthenocarpy
Polyembryony
Explanation: Dichogamy separates the timing of pollen release and stigma receptivity.
Question 17 of 17
Formation of seeds without fertilisation is called:
Parthenocarpy
Apomixis
Syngamy
Pollination
Explanation: Apomixis is seed formation without fertilisation.