Q. In angiosperms, what is the role of the endosperm?
A.
To protect the seed
B.
To provide nourishment to the developing embryo
C.
To facilitate pollination
D.
To aid in seed dispersal
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Solution
The endosperm provides nourishment to the developing embryo within the seed.
Correct Answer:
B
— To provide nourishment to the developing embryo
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Q. What is apomixis in plants?
A.
A form of sexual reproduction
B.
A form of asexual reproduction without fertilization
C.
The process of pollination
D.
The formation of seeds from ovules
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Solution
Apomixis is a form of asexual reproduction where seeds are produced without fertilization.
Correct Answer:
B
— A form of asexual reproduction without fertilization
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Q. What is the main advantage of cross-pollination over self-pollination?
A.
Faster reproduction
B.
Higher seed viability
C.
Increased genetic diversity
D.
Less energy expenditure
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Solution
Cross-pollination increases genetic diversity, which can enhance adaptability and resilience.
Correct Answer:
C
— Increased genetic diversity
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Q. What is the primary function of the ovule in seed plants?
A.
To produce pollen
B.
To develop into a seed after fertilization
C.
To absorb water and nutrients
D.
To support the plant structure
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Solution
The ovule develops into a seed after fertilization, containing the embryo and stored nutrients.
Correct Answer:
B
— To develop into a seed after fertilization
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Q. What is the role of the stigma in flowering plants?
A.
To produce ovules
B.
To receive pollen during fertilization
C.
To support the flower structure
D.
To attract pollinators
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Solution
The stigma is the part of the pistil that receives pollen during the process of fertilization.
Correct Answer:
B
— To receive pollen during fertilization
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Q. What is the term for the process by which seeds are dispersed by animals?
A.
Anemochory
B.
Hydrochory
C.
Zoochory
D.
Autochory
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Solution
Zoochory refers to seed dispersal by animals, which can help in the spread of plant species.
Correct Answer:
C
— Zoochory
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Q. What type of reproduction involves the fusion of gametes from two different individuals?
A.
Asexual reproduction
B.
Vegetative propagation
C.
Sexual reproduction
D.
Apomixis
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Solution
Sexual reproduction involves the fusion of male and female gametes from different individuals.
Correct Answer:
C
— Sexual reproduction
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Q. Which of the following is a characteristic of dioecious plants?
A.
Both male and female reproductive organs are present on the same plant
B.
Plants have separate male and female individuals
C.
They reproduce only asexually
D.
They do not produce flowers
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Solution
Dioecious plants have separate male and female individuals, each producing their respective gametes.
Correct Answer:
B
— Plants have separate male and female individuals
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Q. Which of the following is a characteristic of self-pollination?
A.
Increases genetic diversity
B.
Requires pollinators
C.
Occurs within the same flower or between flowers of the same plant
D.
Leads to hybrid vigor
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Solution
Self-pollination occurs when pollen from the same flower or another flower on the same plant fertilizes the ovule.
Correct Answer:
C
— Occurs within the same flower or between flowers of the same plant
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Q. Which of the following structures is responsible for the production of male gametes in flowering plants?
A.
Stigma
B.
Anther
C.
Style
D.
Ovary
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Solution
The anther is the part of the stamen that produces pollen, which contains male gametes.
Correct Answer:
B
— Anther
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Q. Which plant hormone is primarily involved in promoting fruit development?
A.
Auxin
B.
Gibberellin
C.
Cytokinin
D.
Ethylene
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Solution
Ethylene is a key hormone that promotes fruit ripening and development.
Correct Answer:
D
— Ethylene
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Q. Which plant hormone is primarily responsible for promoting fruit development?
A.
Auxin
B.
Gibberellin
C.
Cytokinin
D.
Ethylene
Show solution
Solution
Ethylene is the hormone that promotes fruit ripening and development.
Correct Answer:
D
— Ethylene
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Showing 1 to 12 of 12 (1 Pages)
This section explores the advanced structural, developmental, and regulatory aspects of plant reproduction. It is designed for advanced Class 11–12 students , NEET aspirants aiming for high scores , and undergraduate learners who want deeper conceptual clarity beyond basic reproductive processes.
In this section, you will study:
Ultrastructure and development of male and female gametophytes
Molecular and hormonal regulation of flowering and reproduction
Detailed mechanisms of pollination and fertilization
Genetic control of self-incompatibility and pollen–pistil interaction
Embryo development, endosperm formation, and seed biology
Apomixis and polyembryony
Evolutionary significance of reproductive adaptations
NCERT-based advanced interpretations and exam-oriented questions
The content is structured to strengthen conceptual depth , enhance analytical thinking , and prepare students to handle higher-difficulty and reasoning-based questions in NEET and undergraduate-level assessments .
Develop a deeper understanding of plant reproduction by linking structural, molecular, and evolutionary perspectives at an advanced level.
