Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
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Showing 1-10 of 50 questions.
What is the male reproductive organ of a flower called?
A. पुंकेसरStamen
Identify the concept: the male part of a flower is the stamen.
It has anther and filament, so it produces pollen.
Exam note: Stamen means male reproductive part.
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What is the female reproductive organ of a flower called?
B. अंडपCarpel
Identify the concept: the female part is the carpel or pistil.
It includes stigma, style, and ovary.
Memory tip: Carpel means female reproductive part.
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What is the main function of the anther?
B. परागकण बनानाTo produce pollen grains
Identify the concept: anther is part of the stamen.
It produces pollen grains, which carry male gametes.
Exam note: Anther produces pollen.
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How many microsporangia are present in a typical anther?
B. चारFour
Identify the concept: a typical anther is bilobed.
Each lobe has two microsporangia, so total is four.
Memory tip: Typical anther has 4 microsporangia.
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Pollen grains are formed from which cells?
A. माइक्रोस्पोर मातृ कोशिकाएंMicrospore mother cells
Identify the concept: pollen formation is microsporogenesis.
Microspore mother cells undergo meiosis to form microspores that become pollen grains.
Exam note: MMC forms microspores.
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What is the outer wall of a pollen grain called?
B. एक्साइनExine
Identify the concept: pollen grain has two walls.
The outer wall is exine and the inner wall is intine.
Memory tip: Exine means external wall.
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What is the inner wall of a pollen grain called?
B. इंटाइनIntine
Identify the concept: pollen has two wall layers.
Intine is the inner thin layer and helps form the pollen tube.
Exam note: Intine is the inner wall.
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Exine of pollen grain is mainly made of which substance?
B. स्पोरोपोलिनिनSporopollenin
Identify the concept: exine is the outer pollen wall.
It is made of sporopollenin, a very resistant material.
Exam note: Sporopollenin protects pollen.
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What is the function of the generative cell in a pollen grain?
B. दो नर युग्मक बनानाTo form two male gametes
Identify the concept: pollen has vegetative and generative cells.
The generative cell divides to form two male gametes.
Memory tip: Generative cell generates gametes.
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How is the vegetative cell in a pollen grain generally described?
B. बड़ी और भोजन से भरपूरLarge and rich in food
Identify the concept: the vegetative cell is larger in pollen.
It supports pollen tube growth and contains food reserves.
Exam note: Vegetative cell is larger.
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