Reproduction - Sexual Reproduction in Plants
Q. In flowering plants, the ovary develops into which part after fertilization? (2023)
A.
Seed
B.
Fruit
C.
Flower
D.
Leaf
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Solution
After fertilization, the ovary develops into a fruit, which contains the seeds.
Correct Answer: B — Fruit
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Q. In flowering plants, the process of pollination involves the transfer of pollen from the anther to the: (2021)
A.
Ovary
B.
Style
C.
Stigma
D.
Sepal
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Solution
Pollination is the transfer of pollen from the anther to the stigma of a flower, which is essential for fertilization.
Correct Answer: C — Stigma
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Q. In which part of the flower does fertilization occur? (2019)
A.
Stamen
B.
Ovary
C.
Style
D.
Petal
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Solution
Fertilization occurs in the ovary, where the male gamete from the pollen fuses with the female gamete in the ovule.
Correct Answer: B — Ovary
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Q. The fusion of male and female gametes in plants is known as: (2021)
A.
Fertilization
B.
Pollination
C.
Germination
D.
Mitosis
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Solution
Fertilization is the process where the male gamete (sperm) fuses with the female gamete (egg) to form a zygote.
Correct Answer: A — Fertilization
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Q. What is the function of petals in a flower? (2020)
A.
Support the flower
B.
Attract pollinators
C.
Produce ovules
D.
Store nutrients
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Solution
Petals serve to attract pollinators with their color and scent.
Correct Answer: B — Attract pollinators
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Q. What is the function of the petals in a flower? (2023)
A.
Attract pollinators
B.
Produce seeds
C.
Support the flower
D.
Store nutrients
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Solution
The petals of a flower are often brightly colored and serve to attract pollinators such as bees and butterflies.
Correct Answer: A — Attract pollinators
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Q. What is the function of the stigma in a flower? (2022)
A.
To attract pollinators
B.
To produce pollen
C.
To receive pollen
D.
To protect ovules
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Solution
The stigma is the part of the flower that receives pollen during pollination, allowing fertilization to occur.
Correct Answer: C — To receive pollen
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Q. What is the male gamete in flowering plants called? (2020)
A.
Ovule
B.
Pollen
C.
Style
D.
Stigma
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Solution
The male gamete in flowering plants is called pollen, which is produced in the anthers of the stamen.
Correct Answer: B — Pollen
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Q. What is the male reproductive part of a flower called? (2020)
A.
Stigma
B.
Anther
C.
Ovary
D.
Style
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Solution
The male reproductive part of a flower is called the stamen, which consists of the anther and filament. The anther is the part that produces pollen.
Correct Answer: B — Anther
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Q. What is the process of fusion of male and female gametes called? (2019)
A.
Pollination
B.
Fertilization
C.
Germination
D.
Transpiration
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Solution
The process of fusion of male and female gametes is called fertilization.
Correct Answer: B — Fertilization
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Q. What is the role of sepals in a flower? (2022)
A.
Attract pollinators
B.
Protect the flower bud
C.
Produce pollen
D.
Support the ovary
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Solution
Sepals protect the flower bud before it opens and can also support the flower.
Correct Answer: B — Protect the flower bud
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Q. What is the role of the filament in a flower? (2022)
A.
To support the anther
B.
To attract pollinators
C.
To produce ovules
D.
To receive pollen
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Solution
The filament is the stalk that supports the anther, which produces pollen.
Correct Answer: A — To support the anther
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Q. What is the term for the fusion of male and female gametes? (2020)
A.
Pollination
B.
Fertilization
C.
Germination
D.
Mitosis
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Solution
Fertilization is the process where the male and female gametes fuse to form a zygote.
Correct Answer: B — Fertilization
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Q. What is the term for the transfer of pollen from anther to stigma? (2020)
A.
Fertilization
B.
Pollination
C.
Germination
D.
Propagation
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Solution
The transfer of pollen from the anther to the stigma is called pollination.
Correct Answer: B — Pollination
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Q. What is the term for the transfer of pollen from the anther to the stigma of the same flower? (2019)
A.
Self-pollination
B.
Cross-pollination
C.
Autogamy
D.
Geitonogamy
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Solution
Self-pollination refers to the transfer of pollen from the anther to the stigma of the same flower, leading to fertilization.
Correct Answer: A — Self-pollination
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Q. Which of the following is NOT a part of the female reproductive structure in flowers? (2023)
A.
Stigma
B.
Style
C.
Anther
D.
Ovary
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Solution
The anther is part of the male reproductive structure (stamen) and is not part of the female reproductive structure.
Correct Answer: C — Anther
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Q. Which of the following is NOT a part of the female reproductive structure of a flower? (2023)
A.
Stigma
B.
Style
C.
Anther
D.
Ovary
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Solution
The anther is part of the male reproductive structure (stamen) of a flower, while stigma, style, and ovary are parts of the female reproductive structure (pistil).
Correct Answer: C — Anther
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Q. Which of the following is NOT a part of the flower? (2023)
A.
Stamen
B.
Pistil
C.
Root
D.
Petal
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Solution
The root is not a part of the flower; it is part of the plant's root system.
Correct Answer: C — Root
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Q. Which of the following structures develops into a fruit after fertilization? (2022)
A.
Ovary
B.
Stigma
C.
Anther
D.
Filament
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Solution
After fertilization, the ovary of the flower develops into a fruit, which contains the seeds.
Correct Answer: A — Ovary
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Q. Which structure protects the developing seeds in a flowering plant? (2021)
A.
Ovary
B.
Anther
C.
Filament
D.
Pistil
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Solution
The ovary protects the developing seeds and will mature into the fruit after fertilization.
Correct Answer: A — Ovary
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Q. Which type of pollination occurs when pollen is transferred from one flower to another flower of the same species? (2021)
A.
Self-pollination
B.
Cross-pollination
C.
Artificial pollination
D.
Wind pollination
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Solution
Cross-pollination occurs when pollen is transferred from one flower to another flower of the same species.
Correct Answer: B — Cross-pollination
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Q. Which type of pollination occurs when pollen is transferred from the anther to the stigma of the same flower? (2021)
A.
Cross-pollination
B.
Self-pollination
C.
Wind pollination
D.
Insect pollination
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Solution
Self-pollination occurs when pollen is transferred from the anther to the stigma of the same flower.
Correct Answer: B — Self-pollination
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