Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  •  Which of the following part of the plant is positively phototropic? Option: 1  Young stem 

 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)

best_answer

 

 

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. 

Posted by

Kuldeep Maurya

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET UG 2026 correction facility opens at neet.nta.nic.in; exam on May 3
anam-khan

NEET 2026 LIVE: NTA application correction window closes today; admit card, exam dates, pattern

Latest Question