Q. In which type of reproduction do plants produce seeds without fertilization?
A.Asexual reproduction
B.Apomixis
C.Sexual reproduction
D.Vegetative propagation
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
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
Solution
The primary advantage of sexual reproduction is genetic diversity, which enhances adaptability and survival in changing environments.
Correct Answer: B — Genetic diversity
Q. What is the primary method of asexual reproduction in plants?
A.Budding
B.Fragmentation
C.Pollination
D.Fertilization
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
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
Solution
The seed coat serves to protect the embryo from physical damage and desiccation during dormancy.
Correct Answer: B — Protection of the embryo
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
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
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
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
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
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
Q. Which of the following is NOT a method of vegetative propagation?
A.Cuttings
B.Layering
C.Grafting
D.Cross-pollination
Solution
Cross-pollination is a method of sexual reproduction, not vegetative propagation, which involves the asexual reproduction of plants.
Correct Answer: D — Cross-pollination
Q. Which part of the flower develops into the fruit?
A.Stamen
B.Ovary
C.Petal
D.Sepal
Solution
The ovary of the flower develops into the fruit after fertilization, enclosing the seeds.