Class 7 Exam > Class 7 Questions > Germination occurs whena)an already dormant e...
Start Learning for Free
Germination occurs when
- a)an already dormant embryo is activated
- b)the cotyledons emerge above ground
- c)either hypocotyls or epicotyls emerges above ground
- d)Vascular tissue begins the transport of water and minerals.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Germination occurs whena)an already dormant embryo is activatedb)the c...
an already dormant embryo is activated
This question is part of UPSC exam. View all Class 7 courses
Most Upvoted Answer
Germination occurs whena)an already dormant embryo is activatedb)the c...
Germination occurs when an already dormant embryo is activated
Germination is the process by which a seed develops into a new plant. It is a crucial stage in the life cycle of plants as it marks the beginning of growth and development. Germination occurs when an already dormant embryo is activated, leading to the emergence of a new plant.
Explanation:
1. Seed Dormancy:
- Seeds are formed by plants as a means of reproduction and dispersal.
- However, they often remain in a dormant state until suitable conditions for germination are met.
- This dormancy helps the seed to survive unfavorable conditions such as extreme temperatures or lack of water.
2. Activation of Dormant Embryo:
- When the conditions are favorable, the dormant embryo within the seed is activated.
- This activation is triggered by a combination of factors such as moisture, temperature, and light.
- The embryo absorbs water, causing it to swell and break through the seed coat.
- This marks the beginning of germination.
3. Growth of the Radicle:
- The first visible sign of germination is the emergence of the radicle, which is the embryonic root of the plant.
- The radicle grows downwards into the soil, anchoring the plant and absorbing water and nutrients.
4. Development of Shoot:
- As the radicle continues to grow, the shoot system begins to develop.
- The shoot consists of the stem, leaves, and eventually the reproductive structures of the plant.
5. Emergence Above Ground:
- Once the root system is established, the shoot system emerges above the ground.
- This is the point at which the cotyledons (seed leaves) may become visible.
Conclusion:
In conclusion, germination occurs when an already dormant embryo is activated. This activation leads to the growth of the radicle, development of the shoot system, and ultimately the emergence of a new plant. Germination is a vital process that allows plants to propagate and colonize new areas.
Germination is the process by which a seed develops into a new plant. It is a crucial stage in the life cycle of plants as it marks the beginning of growth and development. Germination occurs when an already dormant embryo is activated, leading to the emergence of a new plant.
Explanation:
1. Seed Dormancy:
- Seeds are formed by plants as a means of reproduction and dispersal.
- However, they often remain in a dormant state until suitable conditions for germination are met.
- This dormancy helps the seed to survive unfavorable conditions such as extreme temperatures or lack of water.
2. Activation of Dormant Embryo:
- When the conditions are favorable, the dormant embryo within the seed is activated.
- This activation is triggered by a combination of factors such as moisture, temperature, and light.
- The embryo absorbs water, causing it to swell and break through the seed coat.
- This marks the beginning of germination.
3. Growth of the Radicle:
- The first visible sign of germination is the emergence of the radicle, which is the embryonic root of the plant.
- The radicle grows downwards into the soil, anchoring the plant and absorbing water and nutrients.
4. Development of Shoot:
- As the radicle continues to grow, the shoot system begins to develop.
- The shoot consists of the stem, leaves, and eventually the reproductive structures of the plant.
5. Emergence Above Ground:
- Once the root system is established, the shoot system emerges above the ground.
- This is the point at which the cotyledons (seed leaves) may become visible.
Conclusion:
In conclusion, germination occurs when an already dormant embryo is activated. This activation leads to the growth of the radicle, development of the shoot system, and ultimately the emergence of a new plant. Germination is a vital process that allows plants to propagate and colonize new areas.
Attention Class 7 Students!
To make sure you are not studying endlessly, EduRev has designed Class 7 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 7.
|
|
Explore Courses for Class 7 exam
|
|
Top Courses for Class 7View all
Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer?
Question Description
Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer?.
Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7.
Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Here you can find the meaning of Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Germination occurs whena)an already dormant embryo is activatedb)the cotyledons emerge above groundc)either hypocotyls or epicotyls emerges above groundd)Vascular tissue begins the transport of water and minerals.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 7 tests.
|
|
Explore Courses for Class 7 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup