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All questions of Pollination in Plants for SSS 2 Exam
Which part of the flower is primarily colorful and attracts pollinators?- a) Calyx
- b) Corolla
- c) Androecium
- d) Gynoecium
Correct answer is option 'B'. Can you explain this answer?
Which part of the flower is primarily colorful and attracts pollinators?
a)
Calyx
b)
Corolla
c)
Androecium
d)
Gynoecium
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Arizona Academy answered |
The corolla is the whorl of the flower made up of petals, which are usually bright and colorful. This vibrant coloration and sometimes fragrant scent serve to attract pollinators, such as bees and butterflies. The design and coloration of petals are critical for the plant's reproductive success, as they draw in the necessary agents for pollination.
What role do pollinators like bees play in the reproduction of flowers?- a) They protect the flowers from pests
- b) They assist in the transfer of pollen
- c) They provide nutrients to the flowers
- d) They produce pollen
Correct answer is option 'B'. Can you explain this answer?
What role do pollinators like bees play in the reproduction of flowers?
a)
They protect the flowers from pests
b)
They assist in the transfer of pollen
c)
They provide nutrients to the flowers
d)
They produce pollen
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Arizona Academy answered |
Pollinators, such as bees, play a crucial role in the transfer of pollen from the anther to the stigma of flowers, facilitating the process of pollination. This interaction is vital for the fertilization of many plants, leading to the production of fruits and seeds. Interestingly, bees are attracted to flowers not just for pollen but also for nectar, which they use as a food source.
How do honeybees assist in the process of pollination?- a) By producing nectar
- b) By providing nutrients to the flowers
- c) By protecting flowers from pests
- d) By transferring pollen from anther to stigma
Correct answer is option 'D'. Can you explain this answer?
How do honeybees assist in the process of pollination?
a)
By producing nectar
b)
By providing nutrients to the flowers
c)
By protecting flowers from pests
d)
By transferring pollen from anther to stigma
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|
Arizona Academy answered |
Honeybees assist in pollination by transferring pollen from the anther of one flower to the stigma of another flower. This transfer is vital for fertilization, allowing flowers to produce seeds and fruits. The relationship between bees and flowers is symbiotic, as bees collect nectar for food while facilitating the reproductive processes of plants.
What part of the flower grows into fruit?- a) Style
- b) Anther
- c) Ovary
- d) Stigma
Correct answer is option 'C'. Can you explain this answer?
What part of the flower grows into fruit?
a)
Style
b)
Anther
c)
Ovary
d)
Stigma
|
|
Arizona Academy answered |
The ovary of the flower develops into the fruit after fertilization occurs. The fruit serves to protect the seeds and aid in their dispersal. This transformation is critical for the reproductive cycle of flowering plants, as it ensures the continuation of their species. Different types of fruits can evolve from various flowers, showcasing the diversity of plant life.
What does the term 'gynoecium' refer to in a flower?- a) The male reproductive part
- b) The outermost whorl
- c) The colorful part that attracts insects
- d) The female reproductive part
Correct answer is option 'D'. Can you explain this answer?
What does the term 'gynoecium' refer to in a flower?
a)
The male reproductive part
b)
The outermost whorl
c)
The colorful part that attracts insects
d)
The female reproductive part
|
|
Arizona Academy answered |
The gynoecium refers to the innermost whorl of a flower and comprises the female reproductive structures, primarily the pistils or carpels. Each pistil includes the stigma, style, and ovary, which play a crucial role in reproduction. Notably, the ovary develops into a fruit after fertilization, which contains the seeds.
Which part of the flower is sticky and catches pollen grains?- a) Filament
- b) Style
- c) Stigma
- d) Anther
Correct answer is option 'C'. Can you explain this answer?
Which part of the flower is sticky and catches pollen grains?
a)
Filament
b)
Style
c)
Stigma
d)
Anther
|
|
Arizona Academy answered |
The stigma is the sticky knob-like structure at the top of the pistil that captures pollen grains during pollination. This sticky surface is essential for ensuring that pollen grains adhere and can germinate, leading to fertilization. An interesting fact is that different flowers have varying shapes and structures of stigmas, adapted to their specific pollination strategies.
What is the role of the style in a flower?- a) To connect the stigma to the ovary
- b) To protect the flower bud
- c) To produce pollen grains
- d) To attract pollinators
Correct answer is option 'A'. Can you explain this answer?
What is the role of the style in a flower?
a)
To connect the stigma to the ovary
b)
To protect the flower bud
c)
To produce pollen grains
d)
To attract pollinators
|
|
Arizona Academy answered |
The style is the tube-like structure that connects the stigma to the ovary in a flower. It serves as a pathway for pollen grains to travel from the stigma to the ovary during fertilization. This structure is crucial for the reproductive process, as it allows the male gametes to reach the ovules for successful fertilization.
Which of the following flowers is classified as bisexual?- a) Hibiscus
- b) Papaya
- c) Watermelon
- d) Pumpkin
Correct answer is option 'A'. Can you explain this answer?
Which of the following flowers is classified as bisexual?
a)
Hibiscus
b)
Papaya
c)
Watermelon
d)
Pumpkin
|
|
Arizona Academy answered |
Hibiscus is a bisexual flower, meaning it contains both the male (androecium) and female (gynoecium) reproductive parts. In contrast, watermelon and papaya are examples of monosexual flowers, which only possess one type of reproductive part. This dual structure in bisexual flowers allows for self-fertilization and cross-fertilization, enhancing reproductive success.
Why is pollination considered essential for flowering plants?- a) It helps flowers grow larger
- b) It increases the color of flowers
- c) It protects flowers from diseases
- d) It allows plants to produce fruits and seeds
Correct answer is option 'D'. Can you explain this answer?
Why is pollination considered essential for flowering plants?
a)
It helps flowers grow larger
b)
It increases the color of flowers
c)
It protects flowers from diseases
d)
It allows plants to produce fruits and seeds
|
|
Arizona Academy answered |
Pollination is essential for flowering plants because it enables them to produce fruits and seeds through the transfer of pollen from the anther to the stigma. This process is critical for sexual reproduction in plants, allowing for genetic diversity and the continuation of species. The successful pollination of flowers leads to the formation of fruit, which is vital for seed dispersal and plant propagation.
Which flower is known for being a complete flower?- a)Cucumber
- b)Sunflower
- c)Watermelon
- d)Papaya
Correct answer is option 'B'. Can you explain this answer?
Which flower is known for being a complete flower?
a)
Cucumber
b)
Sunflower
c)
Watermelon
d)
Papaya
|
|
Arizona Academy answered |
Sunflower is a complete flower, with its disc florets containing both male (androecium) and female (gynoecium) reproductive parts, enabling self- or cross-pollination. Ray florets are often sterile or lack functional reproductive parts
What is the function of the ovary in a flower?- a) To produce pollen
- b) To protect the flower bud
- c) To attract pollinators
- d) To develop into fruit and contain ovules
Correct answer is option 'D'. Can you explain this answer?
What is the function of the ovary in a flower?
a)
To produce pollen
b)
To protect the flower bud
c)
To attract pollinators
d)
To develop into fruit and contain ovules
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|
Arizona Academy answered |
The ovary is responsible for developing into the fruit after fertilization and houses the ovules, which contain the female reproductive cells. The transformation of the ovary into fruit is crucial for the protection and dispersal of seeds. Interestingly, the type of fruit that develops can vary greatly among different flower species, influencing their survival and reproduction.
Which agents are primarily responsible for pollination?- a) Roots and leaves
- b) Sunlight and nutrients
- c) Insects, wind, and water
- d) Water and soil
Correct answer is option 'C'. Can you explain this answer?
Which agents are primarily responsible for pollination?
a)
Roots and leaves
b)
Sunlight and nutrients
c)
Insects, wind, and water
d)
Water and soil
|
|
Arizona Academy answered |
Pollination is primarily facilitated by agents such as insects, wind, and water. Insects, especially bees, are known for their role in transferring pollen between flowers, while wind and water can carry pollen over longer distances. This diversity of pollination methods allows for greater reproductive success across various plant species.
What is the primary function of the calyx in a flower?- a) To protect the flower while it is still a bud
- b) To connect the stigma to the ovary
- c) To produce pollen grains
- d) To attract pollinators with color and scent
Correct answer is option 'A'. Can you explain this answer?
What is the primary function of the calyx in a flower?
a)
To protect the flower while it is still a bud
b)
To connect the stigma to the ovary
c)
To produce pollen grains
d)
To attract pollinators with color and scent
|
|
Arizona Academy answered |
The calyx serves as the outermost whorl of a flower and is composed of sepals, which protect the flower during its bud stage. This protective function is crucial as it ensures that the developing flower remains safe from environmental factors until it is ready to bloom. Interestingly, the number of sepals can vary widely among different species of flowers.
What is the significance of the ovules in a flower?- a) They are the sites where male and female gametes meet
- b) They produce nectar
- c) They attract pollinators
- d) They protect the flower bud
Correct answer is option 'A'. Can you explain this answer?
What is the significance of the ovules in a flower?
a)
They are the sites where male and female gametes meet
b)
They produce nectar
c)
They attract pollinators
d)
They protect the flower bud
|
|
Arizona Academy answered |
The ovules are the small egg-like structures located inside the ovary and are significant because they are the sites where the male gametes from pollen grains meet the female gametes. This fertilization process leads to the development of seeds. The number of ovules can vary greatly among different flowering plants, influencing their reproductive success.
During self-pollination, where do pollen grains move?- a) From the ovary to the stigma
- b) From the calyx to the corolla
- c) From one flower to another flower of a different species
- d) From the anther to the stigma of the same flower
Correct answer is option 'D'. Can you explain this answer?
During self-pollination, where do pollen grains move?
a)
From the ovary to the stigma
b)
From the calyx to the corolla
c)
From one flower to another flower of a different species
d)
From the anther to the stigma of the same flower
|
|
Arizona Academy answered |
In self-pollination, pollen grains move from the anther to the stigma of the same flower or another flower on the same plant. This type of pollination ensures that a plant can reproduce even in the absence of pollinators, which is particularly advantageous in isolated environments. Many plants have adapted their structures to facilitate this process effectively.
What is the primary difference between bisexual and monosexual flowers?- a) Bisexual flowers contain both androecium and gynoecium
- b) Monosexual flowers have both male and female parts
- c) Only bisexual flowers can produce seeds
- d) Monosexual flowers are always larger than bisexual flowers
Correct answer is option 'A'. Can you explain this answer?
What is the primary difference between bisexual and monosexual flowers?
a)
Bisexual flowers contain both androecium and gynoecium
b)
Monosexual flowers have both male and female parts
c)
Only bisexual flowers can produce seeds
d)
Monosexual flowers are always larger than bisexual flowers
|
|
Arizona Academy answered |
The primary difference is that bisexual flowers contain both the male (androecium) and female (gynoecium) reproductive parts, allowing for self-fertilization or cross-fertilization. In contrast, monosexual flowers possess only one type of reproductive part. This distinction greatly influences the reproductive strategies of different plant species.
What are sepals, and what role do they play in flowers?- a) They connect the stigma to the ovary
- b) They protect the flower during its bud stage
- c) They produce pollen grains
- d) They are colorful structures that attract insects
Correct answer is option 'B'. Can you explain this answer?
What are sepals, and what role do they play in flowers?
a)
They connect the stigma to the ovary
b)
They protect the flower during its bud stage
c)
They produce pollen grains
d)
They are colorful structures that attract insects
|
|
Arizona Academy answered |
Sepals are the small, green, leaf-like structures that make up the calyx, the outermost whorl of a flower. Their primary role is to protect the flower while it is developing as a bud, preventing damage from environmental factors. This protective mechanism is essential for ensuring that the flower can bloom successfully when the time is right.
Which part of the flower is responsible for producing pollen grains?- a) Ovary
- b) Anther
- c) Style
- d) Stigma
Correct answer is option 'B'. Can you explain this answer?
Which part of the flower is responsible for producing pollen grains?
a)
Ovary
b)
Anther
c)
Style
d)
Stigma
|
|
Arizona Academy answered |
The anther, part of the androecium, is responsible for producing pollen grains, which contain the male reproductive cells. These pollen grains are essential for the process of pollination, as they must be transferred to the stigma for fertilization to occur. An interesting fact is that pollen grains are designed to be lightweight to facilitate their transport by wind, water, or pollinators.
In which type of pollination do pollen grains move from one flower to a different flower of the same kind?- a) Asexual pollination
- b) Incomplete pollination
- c) Cross-pollination
- d) Self-pollination
Correct answer is option 'C'. Can you explain this answer?
In which type of pollination do pollen grains move from one flower to a different flower of the same kind?
a)
Asexual pollination
b)
Incomplete pollination
c)
Cross-pollination
d)
Self-pollination
|
|
Arizona Academy answered |
Cross-pollination involves the movement of pollen grains from the anther of one flower to the stigma of a flower on a different plant of the same species. This method promotes genetic diversity and can lead to stronger plant populations. It’s fascinating that many plants have evolved specific traits to attract pollinators to facilitate this process.
What happens to ovules after fertilization?- a) They remain dormant
- b) They become petals
- c) They develop into seeds
- d) They turn into sepals
Correct answer is option 'C'. Can you explain this answer?
What happens to ovules after fertilization?
a)
They remain dormant
b)
They become petals
c)
They develop into seeds
d)
They turn into sepals
|
|
Arizona Academy answered |
After fertilization, the ovules develop into seeds. This process is essential for the continuation of plant species, as seeds will eventually germinate to form new plants. The transformation of ovules into seeds occurs within the ovary, which develops into the fruit that protects the seeds and aids in their dispersal.
Chapter doubts & questions for Pollination in Plants - Biology for SSS 2 2025 is part of SSS 2 exam preparation. The chapters have been prepared according to the SSS 2 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for SSS 2 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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Biology for SSS 2
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