#1
Which part of a flower produces pollen?
Stamen
ExplanationThe stamen is the male reproductive organ of a flower, responsible for producing pollen.
#2
What is the primary purpose of nectar in a flower?
Serving as a food reward for pollinators
ExplanationNectar serves as a food reward for pollinators such as bees, butterflies, and birds.
#3
Which hormone is responsible for the initiation of flowering in plants?
Gibberellin
ExplanationGibberellin is a plant hormone responsible for initiating flowering.
#4
Which type of pollination involves the transfer of pollen by wind?
Anemophily
ExplanationAnemophily is a type of pollination where pollen is transferred by wind.
#5
What is the purpose of the calyx in a flower?
Protecting the flower bud
ExplanationThe calyx protects the flower bud during its development.
#6
What is the function of the sepals in a flower?
Protect the flower bud
ExplanationSepals protect the flower bud and support it as it develops.
#7
In which plant reproductive structure are eggs produced?
Pistil
ExplanationEggs are produced in the pistil, the female reproductive organ of a flower.
#8
Which part of a flower develops into a fruit after fertilization?
Ovary
ExplanationThe ovary develops into a fruit after fertilization, containing seeds.
#9
What is the significance of double fertilization in angiosperms?
It forms a triploid cell leading to endosperm formation
ExplanationDouble fertilization in angiosperms leads to the formation of a triploid cell, which develops into endosperm, providing nutrients to the developing embryo.
#10
What is the purpose of the anther in a flower?
Produce pollen
ExplanationThe anther produces pollen, which contains the male gametes in flowers.
#11
Which process is crucial for the formation of viable seeds after fertilization?
Embryogenesis
ExplanationEmbryogenesis is the process crucial for the development of embryos from fertilized eggs, leading to the formation of viable seeds.
#12
What is the process by which pollen is transferred from the male to the female reproductive organs of a flower?
Pollination
ExplanationPollination is the transfer of pollen from the male reproductive organs to the female reproductive organs of a flower.
#13
What is apomixis in plant reproduction?
Asexual reproduction without fertilization
ExplanationApomixis is a form of asexual reproduction in plants where seeds are produced without fertilization.
#14
Which type of pollination involves the transfer of pollen within the same flower or between flowers of the same plant?
Self-pollination
ExplanationSelf-pollination involves the transfer of pollen within the same flower or between flowers of the same plant.
#15
What is the purpose of the style in a flower's reproductive system?
Connecting the ovary to the stigma
ExplanationThe style connects the ovary to the stigma, facilitating the transfer of pollen during fertilization.
#16
What is the purpose of the stigma in a flower?
Receive pollen for fertilization
ExplanationThe stigma receives pollen for fertilization, facilitating the union of male and female gametes.
#17
What is the significance of gametophyte in the life cycle of plants?
It produces gametes
ExplanationThe gametophyte generation in plants produces gametes, which are necessary for sexual reproduction.