39 Questions
What forms the seed coat, providing protection to the developing embryo?
Outer layers of the ovule
Which part of a seed embryo is responsible for developing into the stem above the cotyledons?
Plumule
What type of fruits develop from the ovaries of multiple flowers growing in a cluster?
Multiple fruits
Which process results in offspring that are genetically identical to the parent plant?
Apomixis
Which type of plant completes its life cycle in one year?
Monocarpic
What characterizes polycarpic plants?
They can flower and set seeds multiple times over their lifespan.
What is the function of the Calyx in a flower?
Protecting the bud
In a complete flower, which of the following statements is true?
Both male and female parts are present
What is the function of the Stigma in a flower?
Receiving pollen grains
How do you differentiate between a monocot and a dicot flower based on petal and sepal numbers?
Monocots have 5 or multiples of 4 or 5 petals, while dicots have 3 or multiples
What is the main function of the Androecium in a flower?
Containing male reproductive structures
In an imperfect flower, what does a staminate flower specifically lack?
Female reproductive structures
What is the main function of fruit?
Seed dispersal
Which type of fruit forms from many carpels that fuse together?
Aggregate fruits
Which of the following is NOT a type of simple fruit?
Hesperidium
In which type of fruit does the endocarp form a hard enclosure (pit) surrounding the seed?
Drupes
Which of the following is an example of an accessory fruit?
Apples
What process in angiosperms leads to the formation of fruit?
Double fertilization
Which method of natural asexual reproduction results in seed production without fertilization?
Apomixis
What plant structure allows for self-propagation and can give rise to multiple plants?
Rhizome
Which plant type flowers only once in its lifetime and dies soon after?
Monocarpic plants
What term is used to describe plant aging?
Senescence
What is the result of microsporogenesis in angiosperms?
Production of a pollen tetrad of microspores
Which cell in angiosperms produces two sperm cells through mitosis?
Generative cell
What is the function of the tube cell in angiosperm reproduction?
Develops into the pollen tube
What is the outcome of megasporogenesis in angiosperms?
Production of 4 megaspores
Which part of the angiosperm female gametophyte contains polar nuclei that become the endosperm?
Central cell
What happens after a sperm cell unites with an egg cell within an ovule in angiosperms?
Multiple cell divisions to form an embryo
Which part of a seed serves as a food reserve for the developing embryo?
Cotyledons
What distinguishes monocots from dicots in terms of the number of sepals and petals in a flower?
Monocots have 3 sepals and multiples of 3 petals, while dicots have 4 or 5 sepals and multiples of 4 or 5 petals.
What are the main differences between a complete flower and a perfect flower?
A complete flower has both male and female parts, while a perfect flower lacks one or more whorls.
What distinguishes monoecious plants from dioecious plants in terms of their flowers?
Monoecious plants have both male and female flowers on the same plant, while dioecious plants have male and female flowers on separate plants.
How do angiosperms differ from gymnosperms in terms of their pollination methods?
Angiosperms are mostly animal-pollinated, while gymnosperms mainly depend on wind pollination.
What must happen after the mechanical transfer of pollen from anther to stigma for fertilization to potentially occur?
The generative cell divides to produce two sperm cells with flagella.
Describe how cross-pollination occurs through insects as pollinators.
Insects are attracted to brightly colored and fragrant flowers that contain nectar.
Which process leads to the formation of pollen grains in angiosperms?
Microsporogenesis in the anther results in the formation of pollen grains.
What is the primary role of the style in a flower's reproductive structure?
The style guides the pollen tube towards the embryo sac for fertilization.
What distinguishes staminate from carpellate imperfect flowers?
Staminate flowers only possess male reproductive parts, while carpellate flowers only have female reproductive parts.
How does megasporogenesis differ from microsporogenesis in angiosperms?
Megasporogenesis results in the formation of megaspores that develop into ovules, whereas microsporogenesis leads to the production of microspores that become pollen grains.
Test your knowledge on different types of fruits and their formation, as well as the structure of fruits. Learn about simple fruits, aggregate fruits, and multiple fruits in this quiz.
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