Browse by Stream
-
Engineering and Architecture
Exams
Colleges
Predictors
Resources
-
Computer Application and IT
Quick Links
Colleges
-
Pharmacy
Colleges
Resources
-
Hospitality and Tourism
Colleges
Resources
Diploma Colleges
-
Competition
Other Exams
Resources
-
School
Exams
Top Schools
Products & Resources
-
Study Abroad
Top Countries
Resources
-
Arts, Commerce & Sciences
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Exams
Colleges & Courses
Predictors
-
Learn
Law Preparation
MBA Preparation
Engineering Preparation
Medical Preparation
-
Online Courses and Certifications
Top Streams
Specializations
- Digital Marketing Certification Courses
- Cyber Security Certification Courses
- Artificial Intelligence Certification Courses
- Business Analytics Certification Courses
- Data Science Certification Courses
- Cloud Computing Certification Courses
- Machine Learning Certification Courses
- View All Certification Courses
Resources
-
Medicine and Allied Sciences
Colleges
Predictors
Resources
-
Law
Resources
Colleges
-
Animation and Design
Exams
Predictors & Articles
Colleges
Resources
-
Media, Mass Communication and Journalism
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
- #Medical
- #Structural Organisation in Animals and Plants
- #Biology
- #Class 11
- #National Eligilibility Cum Entrance Test
- #National Eligibility Cum Entrance Test
Which of the following part of the plant is positively phototropic?
Option: 1
Young stem
Option: 2
Old stem
Option: 3
Both a and b
Option: 4
None of these
Answers (1)
The Stem:
- Stem is a major organ of the shoot system of plant body.
- It arises through the elongation of plumule of the embryo.
- Stem is negatively geotropic, negatively hydrotropic and positively phototropic.
- Stem differs from root because it shows a clear demarcation of nodes and internodes.
- Nodes are the regions of the stem where leaves are borne.
- Internode is the region between two nodes.
- Stem bears vegetative buds that are responsible for the growth of the plant.
- The apical bud adds to the height of the plant while the axillary bud allows the growth of lateral branches.
- Stem also bears floral buds.
- Young stem is generally green due to the presence of chlorophyll. Hence, young stem is photosynthetic.
- Older stem of trees becomes woody and dark brown.
-
Stem is positively phototropic.
View full answer
NEET 2024 Most scoring concepts
- Just Study 32% of the NEET syllabus and Score up to 100% marks
