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Practice Class 7 Science MCQ Questions with Answers based on the latest NCERT syllabus. Learn about reproduction in plants, flowers, stamen, fertilization, pollination, and seed dispersal with original concept-based explanations, exam-focused notes, and NCERT-aligned solutions for CBSE and State Board students.
Do You Know
Chapter Information
Subject: Science
Class: 7
Chapter: Reproduction in Plants
Question Type: Multiple Choice Questions (MCQs)
Difficulty Level: Easy to Moderate
Based On: Latest NCERT Syllabus
Introduction
Reproduction is one of the essential life processes that ensures the continuity of plant species. In flowering plants, structures such as the flower, stamen, and pistil play important roles in reproduction. This chapter also explains pollination, fertilization, seed formation, and different methods of seed dispersal. Understanding these concepts helps students build a strong foundation in plant biology.
What You Will Learn
✔ Reproduction in plants
✔ Parts of a flower
✔ Stamen and pistil
✔ Fertilization
✔ Pollination
✔ Seed dispersal
Why This Topic Is Important?
Reproduction in plants is a fundamental topic in Biology and forms the basis for understanding the life cycle of flowering plants. Questions from this chapter are frequently asked in CBSE, State Board, Olympiad, and scholarship examinations.
Exam Relevance
These questions are useful for:
✔ CBSE Exams
✔ State Board Exams
✔ School Tests
✔ Unit Tests
✔ Half-Yearly Exams
✔ Annual Exams
✔ Olympiad Preparation
✔ Scholarship Examinations
Q1. Which part of the plant is involved in sexual reproduction?
A) Root
B) Stem
C) Leaf
D) Flower
Answer
Flower
Concept
The flower is the reproductive organ of flowering plants.
Explanation
The flower contains both the male and female reproductive parts required for sexual reproduction. It is the site where pollination, fertilization, and seed formation take place, leading to the production of new plants.
Exam Focus
Remember: The flower is the reproductive part of a flowering plant.
The process by which living organisms produce new individuals (offspring) of their own kind is called Reproduction. It is a fundamental biological process that ensures the continuity of a species on Earth.
Q2. The male reproductive part of a flower is:
A) Petal
B) Sepal
C) Stamen
D) Pistil
Answer
Stamen
Concept
Flowers contain specialized reproductive organs.
Explanation
The stamen is the male reproductive part of a flower. It consists of the anther, which produces pollen grains, and the filament, which supports the anther. Pollen grains contain the male gametes.
Exam Focus
Remember: Stamen = Male reproductive organ of a flower.
Q3. The production of new individuals from their parents is known as:
A) Respiration
B) Digestion
C) Reproduction
D) Excretion
Answer
Reproduction
Concept
Reproduction is an essential characteristic of all living organisms.
Explanation
Reproduction is the biological process through which living organisms produce offspring of their own kind. It ensures the continuity and survival of a species from one generation to the next.
Exam Focus
Remember: Reproduction is the process of producing new individuals.
Most plants have roots, stems, and leaves; these are called the vegetative parts. However, Flowers perform the function of reproduction in plants. After a certain period of growth, plants bear flowers, which eventually develop into fruits and seeds.
3. Stamen and Pistil
A flower contains the reproductive organs of a plant:
- Stamen: This is the male reproductive part. It consists of an anther (which produces pollen grains) and a filament.
- Pistil: This is the female reproductive part. It consists of the stigma, style, and ovary (which contains ovules).
Q4. The fusion of male and female gametes is called:
A) Fragmentation
B) Germination
C) Fertilization
D) Pollination
Answer
Fertilization
Concept
Fertilization is a key step in sexual reproduction.
Explanation
Fertilization is the process in which the male and female gametes fuse to form a zygote. The zygote develops into an embryo, which later forms a new plant.
Exam Focus
Remember: Fertilization = Fusion of male and female gametes.
In sexual reproduction, a male gamete (found in pollen) must fuse with a female gamete (found in the ovule).
- The process of fusion of male and female gametes is called Fertilization.
- The cell which results after fusion is called a Zygote, which later develops into an embryo.
Q5. Seeds of drumstick and maple are carried by:
A) Water
B) Wind
C) Animals
D) Insects
Answer
Wind
Concept
Different plants use different methods to disperse their seeds.
Explanation
The seeds of drumstick and maple are light in weight and often have wing-like structures. These adaptations allow them to be carried away by the wind, helping them spread to new places for germination.
Exam Focus
Remember: Drumstick and maple seeds are dispersed by wind.
Important Concepts
1. Flower
- Reproductive organ of flowering plants.
- Produces seeds after fertilization.
2. Stamen
Parts:
- Anther
- Filament
Function:
- Produces pollen grains containing male gametes.
3. Pistil
Parts:
- Stigma
- Style
- Ovary
Function:
- Contains ovules with female gametes.
4. Pollination
Types:
- Self-pollination
- Cross-pollination
Agents:
- Wind
- Water
- Insects
- Birds
5. Fertilization
- Fusion of male and female gametes.
- Produces a zygote.
- Leads to seed formation.
6. Seed Dispersal
Common methods:
- Wind
- Water
- Animals
- Explosion of fruits
Related Practice Questions
- Name the reproductive part of a flowering plant.
- Differentiate between stamen and pistil.
- What is fertilization?
- Name any two agents of pollination.
- Why is seed dispersal important?
Mini Quiz Challenge
True or False
- Flowers are the reproductive organs of flowering plants.
- The stamen is the female reproductive organ.
- Fertilization results in the formation of a zygote.
- Drumstick seeds are dispersed by wind.
- Reproduction helps maintain the continuity of species.
Exam Tips
✔ Learn the functions of stamen and pistil separately.
✔ Do not confuse pollination with fertilization.
✔ Remember common examples of seed dispersal.
✔ Revise the sequence: Pollination → Fertilization → Seed Formation.
✔ Focus on diagrams of flower structure from NCERT.
Quick Revision Notes
✔ Flower is the reproductive part of a plant.
✔ Stamen is the male reproductive organ.
✔ Pistil is the female reproductive organ.
✔ Fertilization is the fusion of male and female gametes.
✔ Drumstick and maple seeds are dispersed by wind.
✔ Seed dispersal helps plants grow in new locations.
Common Mistakes Students Make
❌ Confusing pollination with fertilization.
❌ Identifying the pistil as the male reproductive organ.
❌ Assuming all seeds are dispersed by wind.
❌ Forgetting that fertilization forms a zygote.
❌ Mixing up flower parts and their functions.
Key Takeaways
- The flower is the reproductive organ of flowering plants.
- The stamen produces pollen grains containing male gametes.
- Reproduction ensures the continuation of plant species.
- Fertilization is the fusion of male and female gametes to form a zygote.
- Wind is an important agent for the dispersal of seeds such as drumstick and maple.
FAQs
1. Which part of a plant is responsible for sexual reproduction?
The flower is the reproductive organ involved in sexual reproduction.
2. What is the function of the stamen?
The stamen produces pollen grains that contain the male gametes.
3. What is reproduction?
Reproduction is the biological process by which living organisms produce new individuals of the same species.
4. How are drumstick and maple seeds dispersed?
These seeds are dispersed by wind because they are light and often have wing-like structures.
5. What is fertilization in plants?
Fertilization is the fusion of male and female gametes to form a zygote, which develops into a seed.
NCERT Reference
Book: NCERT Science Class 7
Chapter: Chapter 12 – Reproduction in Plants
Based On: Latest NCERT Curriculum (CBSE)
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