NEET Exam > NEET Videos > Plant Life Cycles & Alternation of Generations (Old NCERT)
Plant Life Cycles & Alternation of Generations (Old NCERT) Video Lecture - NEET
FAQs on Plant Life Cycles & Alternation of Generations (Old NCERT) Video Lecture - NEET
| 1. What is alternation of generations in plant life cycles? |  |
Ans. Alternation of generations refers to the reproductive strategy in plants where they alternate between a multicellular diploid phase called the sporophyte and a multicellular haploid phase called the gametophyte. In this cycle, the sporophyte produces spores through meiosis, which then develop into gametophytes. The gametophytes produce gametes through mitosis, which then fuse to form a zygote, giving rise to a new sporophyte generation.
| 2. How does the alternation of generations contribute to plant reproduction? | |
Ans. Alternation of generations is essential for plant reproduction as it allows for the production of both gametes and spores. The sporophyte generation produces spores through meiosis, which are dispersed and develop into gametophytes. The gametophytes then produce gametes through mitosis, which fuse during fertilization to form a zygote. This zygote develops into a new sporophyte, completing the cycle and ensuring the continuation of the plant species.
| 3. What are some examples of plants that exhibit alternation of generations? | |
Ans. Examples of plants that exhibit alternation of generations include mosses, ferns, and flowering plants. In mosses, the dominant generation is the gametophyte, while in ferns and flowering plants, the dominant generation is the sporophyte. Each of these plants goes through a distinct cycle of alternating between sporophyte and gametophyte generations.
| 4. How does the alternation of generations contribute to genetic diversity in plants? | |
Ans. The alternation of generations in plants contributes to genetic diversity through two key processes: meiosis and fertilization. During meiosis, the sporophyte generation produces haploid spores, each with a unique combination of genetic material. These spores develop into gametophytes, which produce gametes through mitosis. When gametes from different gametophytes fuse during fertilization, they combine their genetic material, resulting in offspring with new combinations of genes. This genetic diversity allows plants to adapt to changing environments and increases their chances of survival.
| 5. How does the alternation of generations differ between different plant groups? | |
Ans. The alternation of generations can differ between different plant groups in terms of the relative dominance of the sporophyte and gametophyte generations. In some plants, such as mosses, liverworts, and hornworts, the gametophyte generation is dominant and the sporophyte generation is relatively small and dependent on the gametophyte. In contrast, in ferns, gymnosperms, and flowering plants, the sporophyte generation is dominant and the gametophyte generation is relatively small and short-lived. Additionally, the structures and reproductive strategies of the sporophyte and gametophyte generations can vary among different plant groups.
Related Exams
About this Video
|
2.5K Views |
|
4.89/5 Rating |
|
Dec 23, 2024 Last updated |
Plant Life Cycles & Alternation of Generations (Old NCERT) for NEET2024 is part of NEET preparation. The notes and questions for Plant Life Cycles & Alternation of Generations (Old NCERT)
have been prepared according to the NEET exam syllabus. Information about Plant Life Cycles & Alternation of Generations (Old NCERT) covers all important topics
for NEET2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises
and tests below for Plant Life Cycles & Alternation of Generations (Old NCERT).
Introduction of Plant Life Cycles & Alternation of Generations (Old NCERT) in English is available as part of our NEET preparation & Plant Life Cycles & Alternation of Generations (Old NCERT) in Hindi
for NEET courses. Download more important topics, notes, lectures and mock test series for NEET Exam by
signing up for free.
Description
Video Lecture & Questions for Plant Life Cycles & Alternation of Generations (Old NCERT) Video Lecture - NEET - NEET full syllabus preparation | Free video for NEET exam.
Information about Plant Life Cycles & Alternation of Generations (Old NCERT)
Here you can find the Plant Life Cycles & Alternation of Generations (Old NCERT) defined & explained in the simplest way possible. Besides explaining types of Plant Life Cycles & Alternation of Generations (Old NCERT)
theory, EduRev gives you an ample number of questions to practice Plant Life Cycles & Alternation of Generations (Old NCERT) tests, examples and also practice NEET tests.
Video Timeline
|
Explore Courses for NEET exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Exam
,video lectures
,study material
,ppt
,Objective type Questions
,past year papers
,Plant Life Cycles & Alternation of Generations (Old NCERT) Video Lecture - NEET
,Viva Questions
,Important questions
,practice quizzes
,Summary
,Previous Year Questions with Solutions
,Sample Paper
,mock tests for examination
,Plant Life Cycles & Alternation of Generations (Old NCERT) Video Lecture - NEET
,MCQs
,Free
,Plant Life Cycles & Alternation of Generations (Old NCERT) Video Lecture - NEET
,shortcuts and tricks
,Extra Questions
,Semester Notes
;
Study Plant Life Cycles & Alternation of Generations (Old NCERT) on the App
Students of NEET can study Plant Life Cycles & Alternation of Generations (Old NCERT) alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Plant Life Cycles & Alternation of Generations (Old NCERT),
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Plant Life Cycles & Alternation of Generations (Old NCERT) is prepared as per the latest NEET syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup