Q. In which type of reproduction do plants produce seeds without fertilization?
A.
Asexual reproduction
B.
Apomixis
C.
Sexual reproduction
D.
Vegetative propagation
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Solution
Apomixis is a form of asexual reproduction where seeds are produced without fertilization, allowing for the offspring to be genetically identical to the parent.
Correct Answer:
B
— Apomixis
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Q. What is the primary advantage of sexual reproduction in plants?
A.
Clonal propagation
B.
Genetic diversity
C.
Rapid population increase
D.
No need for pollinators
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Solution
The primary advantage of sexual reproduction is genetic diversity, which enhances adaptability and survival in changing environments.
Correct Answer:
B
— Genetic diversity
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Q. What is the primary method of asexual reproduction in plants?
A.
Budding
B.
Fragmentation
C.
Pollination
D.
Fertilization
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Solution
Fragmentation is a common method of asexual reproduction in plants where a part of the plant breaks off and develops into a new individual.
Correct Answer:
B
— Fragmentation
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Q. What is the role of the seed coat?
A.
Nourishment for the embryo
B.
Protection of the embryo
C.
Attraction of pollinators
D.
Photosynthesis
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Solution
The seed coat serves to protect the embryo from physical damage and desiccation during dormancy.
Correct Answer:
B
— Protection of the embryo
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Q. What is the term for the transfer of pollen from the male anther to the female stigma?
A.
Fertilization
B.
Pollination
C.
Germination
D.
Seed dispersal
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Solution
Pollination is the process of transferring pollen from the male anther to the female stigma, which is essential for fertilization.
Correct Answer:
B
— Pollination
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Q. What type of plant life cycle alternates between a haploid gametophyte and a diploid sporophyte?
A.
Monocarpic
B.
Dioecious
C.
Alternation of generations
D.
Annual
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Solution
The alternation of generations is a life cycle characteristic of plants where they alternate between a haploid gametophyte and a diploid sporophyte.
Correct Answer:
C
— Alternation of generations
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Q. Which of the following is a characteristic of wind-pollinated plants?
A.
Brightly colored flowers
B.
Strong fragrance
C.
Large amounts of lightweight pollen
D.
Nectar production
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Solution
Wind-pollinated plants typically produce large amounts of lightweight pollen to increase the chances of successful pollination.
Correct Answer:
C
— Large amounts of lightweight pollen
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Q. Which of the following is NOT a method of vegetative propagation?
A.
Cuttings
B.
Layering
C.
Grafting
D.
Cross-pollination
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Solution
Cross-pollination is a method of sexual reproduction, not vegetative propagation, which involves the asexual reproduction of plants.
Correct Answer:
D
— Cross-pollination
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Q. Which part of the flower develops into the fruit?
A.
Stamen
B.
Ovary
C.
Petal
D.
Sepal
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Solution
The ovary of the flower develops into the fruit after fertilization, enclosing the seeds.
Correct Answer:
B
— Ovary
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