ACT Exam > ACT Videos > Science for ACT > Secondary vs Primary Growth
Secondary vs Primary Growth Video Lecture | Science for ACT
|
486 videos|517 docs|337 tests
|
FAQs on Secondary vs Primary Growth Video Lecture - Science for ACT
| 1. What is the difference between secondary and primary growth? |  |
Ans. Primary growth refers to the increase in length or height of a plant, while secondary growth refers to the increase in girth or width of a plant. Primary growth occurs at the apical meristems, located at the tips of roots and shoots, and is responsible for the upward growth of the plant. Secondary growth occurs at the lateral meristems, such as the vascular cambium and cork cambium, and is responsible for the outward growth of the plant.
| 2. What are the main factors that regulate primary growth in plants? | |
Ans. Primary growth in plants is regulated by various factors. The main factors include hormones, such as auxins, gibberellins, and cytokinins, which control cell division and elongation. Environmental factors like light, temperature, and water availability also influence primary growth. Additionally, genetic factors play a crucial role in determining the rate and extent of primary growth in different plant species.
| 3. How does secondary growth contribute to the structural support of woody plants? | |
Ans. Secondary growth plays a vital role in providing structural support to woody plants. The vascular cambium, a lateral meristem, produces secondary xylem (wood) on the inner side and secondary phloem on the outer side. The secondary xylem provides mechanical strength and rigidity to the plant, allowing it to withstand the forces of wind and gravity. As the secondary xylem accumulates over time, it forms the woody stem or trunk of the plant.
| 4. What is the significance of secondary growth in the production of timber? | |
Ans. Secondary growth is of immense significance in the production of timber. Timber is primarily derived from the secondary xylem or wood of woody plants. The continuous production of secondary xylem by the vascular cambium results in the thickening of the stem, which eventually forms the timber. The quality and quantity of timber produced are influenced by the rate and duration of secondary growth, making it a crucial process in the forestry industry.
| 5. How does the process of secondary growth contribute to the formation of tree rings? | |
Ans. The process of secondary growth is responsible for the formation of tree rings. Each year, the vascular cambium produces a new layer of secondary xylem, known as the annual ring. The size and characteristics of the annual ring vary depending on the environmental conditions during that particular year. By counting the tree rings, scientists can determine the age of a tree and gain valuable insights into past climatic conditions and growth patterns.
About this Video
|
1K Views |
|
4.94/5 Rating |
|
Dec 18, 2024 Last updated |
Video Description: Secondary vs Primary Growth for ACT 2024 is part of Science for ACT preparation.
The notes and questions for Secondary vs Primary Growth have been prepared according to the ACT exam syllabus.
Information about Secondary vs Primary Growth covers all important topics for ACT 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Secondary vs Primary Growth.
Introduction of Secondary vs Primary Growth in English is available as part of our Science for ACT for ACT & Secondary vs Primary Growth in
Hindi for Science for ACT course. Download more important topics related with notes, lectures and mock test series for
ACT Exam by signing up for free.
Description
Video Lecture & Questions for Secondary vs Primary Growth Video Lecture | Science for ACT - ACT full syllabus preparation | Free video for ACT exam to prepare for Science for ACT.
Information about Secondary vs Primary Growth
Here you can find the meaning of Secondary vs Primary Growth defined & explained in the simplest way possible.
Besides explaining types of Secondary vs Primary Growth theory, EduRev gives you an ample number of questions to practice Secondary vs Primary Growth tests,
examples and also practice ACT tests.
|
486 videos|517 docs|337 tests
|
|
Explore Courses for ACT exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
study material
,Previous Year Questions with Solutions
,Sample Paper
,MCQs
,Semester Notes
,Important questions
,past year papers
,Exam
,Summary
,shortcuts and tricks
,practice quizzes
,Secondary vs Primary Growth Video Lecture | Science for ACT
,Objective type Questions
,Secondary vs Primary Growth Video Lecture | Science for ACT
,Extra Questions
,ppt
,Secondary vs Primary Growth Video Lecture | Science for ACT
,mock tests for examination
,video lectures
,Viva Questions
,Free
;
Study Secondary vs Primary Growth on the App
Students of ACT can study Secondary vs Primary Growth alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Secondary vs Primary Growth,
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 Secondary vs Primary Growth is prepared as per the latest ACT syllabus.
|
© 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